B2c | E-Commerce | PRINT-ON-DEMAND | APPAREL DESIGN
B2c / E-Commerce / PRINT-ON-DEMAND

Redesigning the Sizing Experience at Jiffy Transfers

Redesigning the Sizing Experience at Jiffy Transfers

COMPANY

Jiffy

ROLE

Senior Product Designer

YEAR

2025

Jiffy Transfers is a DTF (Direct-to-Film) transfer printing platform where small business owners and hobbyists upload designs to print on apparel. During my time leading the design, the business grew from ~$750K to $1.5M in weekly revenue in 6 months.

This case highlights a key initiative that helped unlock that growth by improving conversion at a critical friction point.

Jiffy Transfers is a DTF (Direct-to-Film) transfer printing platform where small business owners and hobbyists upload designs to print on apparel. During my time leading the design, the business grew from ~$750K to $1.5M in weekly revenue in 6 months.


This case highlights a key initiative that helped unlock that growth by improving conversion at a critical friction point.

RESPONSIBILITIES

Research & strategy, design & prototyping, usability testing, stakeholder alignment

Research & strategy, design & prototyping, usability testing, stakeholder alignment

Tools

Mixpanel, Hotjar, Figma, Userlytics, Dovetail

Mixpanel, Hotjar, Figma, Userlytics, Dovetail

TIMELINE

12 weeks

12 weeks

Results

-62% drop-off rate

-62% drop-off rate

+45% new users conversion

+45% new users conversion

-34% support tickets

-34% support tickets

RESPONSIBILITIES

Research & strategy

Design & prototyping

Usability testing

Stakeholder alignment

Tools

Mixpanel

Hotjar

Figma

Userlytics

Dovetail

TIMELINE

12 weeks

Results

-62% drop-off rate

+45% new users conversion

-34% support tickets

The problem

At Jiffy Transfers, users upload artwork to print custom heat transfers.

Users dropped off after uploading a design due to lack of sizing guidance, no visual preview, and unclear expectations.

🚫 56% of users abandoned the process at this step.

This confusion caused repeated actions, low conversion, and high support ticket volume.

Project goal: Reduce drop-off after image upload and improve order speed.

DISCOVERY

DISCOVERY

Digging in: patterns, behavior and assumptions

To uncover the behavioral and structural friction behind high drop-off rates, I designed and ran a multi layer discovery process that combined analytics, surveys, interviews, and internal expertise.

To uncover the behavioral and structural friction behind high drop-off rates, I designed and ran a multi layer discovery process that combined analytics, surveys, interviews, and internal expertise.

Extracting Existing Data > Forming Hypothesis > Validating

Extracting Existing Data > Forming Hypothesis > Validating

The problem

At Jiffy Transfers, users upload artwork to print custom heat transfers.

Users dropped off after uploading a design due to lack of sizing guidance, no visual preview, and unclear expectations.

🚫 56% of users abandoned the process at this step.

This confusion caused repeated actions, low conversion, and high support ticket volume.

DISCOVERY

Digging in: patterns, behavior and assumptions

To uncover the behavioral and structural friction behind high drop-off rates, I designed and ran a multi layer discovery process that combined analytics, surveys, interviews, and internal expertise.

Extracting Existing Data > Forming Hypothesis > Validating

Extracting existing data

Extracting existing data

Mixpanel Analytics

Mixpanel Analytics

Confirmed drop-off timing and analyzed upload event patterns to understand user behavior

Confirmed drop-off timing and analyzed upload event patterns to understand user behavior

Critical Insight

Critical Insight

This behavior didn't explain the drop directly — but it surfaced something crucial: Users didn't just want to upload once they were trying to get multiple sizes of the same design.

Hotjar Sessions

Hotjar Sessions

Reviewed actual user sessions to see real-time behavior and identify friction points

Reviewed actual user sessions to see real-time behavior and identify friction points

User Journey Breakdown

User Journey Breakdown

Step 1: Users uploaded their design
Step 2: They toggled sizing fields — manually inputting width/height
Step 3: Then… they abandoned the process

Forming hypothesis

Forming hypothesis

Sizing Uncertainty

Sizing Uncertainty

The drop-off is driven by uncertainty around sizing, especially for new users who don't know what size to enter after uploading their image.

The drop-off is driven by uncertainty around sizing, especially for new users who don't know what size to enter after uploading their image.

The drop-off is driven by uncertainty around sizing, especially for new users who don't know what size to enter after uploading their image.

Multiple Size Needs

Multiple Size Needs

Users need to order the same design in multiple sizes for different apparel types, t-shirt sizes, and placements.

Users need to order the same design in multiple sizes for different apparel types, t-shirt sizes, and placements.

Users need to order the same design in multiple sizes for different apparel types, t-shirt sizes, and placements.

Validating hypothesis

Validating hypothesis

Customer support
insights

Customer support insights

Analyzed customer support tickets for direct user feedback and pain points

Analyzed customer support tickets for direct user feedback and pain points

User outreach
(drop-off cohort)

User outreach (drop-off cohort)

Proactively contacted users who abandoned the experience after upload to understand friction in the sizing step.

Proactively contacted users who abandoned the experience after upload to understand friction in the sizing step.

1:1 Interviews
with power users

1:1 Interviews with power users

Explored how experienced users approach sizing decisions and what they expect from the flow.

Explored how experienced users approach sizing decisions and what they expect from the flow.

Targeted surveys
(500+)

Targeted surveys (500+)

Collected input from users who uploaded the same image 5+ times.

Collected input from users who uploaded the same image 5+ times.

Demos
with Internal SMEs

Demos with Internal SMEs

Conducted hands-on testing with in-house crafters to validate sizing logic, terminology, and real-world usability from an expert’s perspective.

Conducted hands-on testing with in-house crafters to validate sizing logic, terminology, and real-world usability from an expert’s perspective.

Ecosystem deep dive

Reviewed 25+ YouTube tutorials, cheat sheets, Reddit threads, and community guides to map language, workflows, and edge cases.

Industry expert
interviews

Industry expert interviews

Spoke with 8 pro printers and shop owners to understand real-world sizing logic, material limitations, and transfer placement standards.

Spoke with 8 pro printers and shop owners to understand real-world sizing logic, material limitations, and transfer placement standards.

Ecosystem deep dive

Ecosystem deep dive

Reviewed 25+ YouTube tutorials, cheat sheets, Reddit threads, and community guides to map language, workflows, and edge cases.

Reviewed 25+ YouTube tutorials, cheat sheets, Reddit threads, and community guides to map language, workflows, and edge cases.

DISCOVERY

Research highlights

Research highlights

DISCOVERY

Support data confirmed a steady stream of tickets related to size confusion. Users weren’t sure how big their design should be or where it would land.

Support data confirmed a steady stream of tickets related to size confusion. Users weren’t sure how big their design should be or where it would land.

Support data confirmed a steady stream of tickets related to size confusion. Users weren’t sure how big their design should be or where it would land.

Internal demos with our in-house crafters revealed that the multi-size workflow was manual and repetitive. They had to upload the same design multiple times with slightly different dimensions.

Internal demos with our in-house crafters revealed that the multi-size workflow was manual and repetitive. They had to upload the same design multiple times with slightly different dimensions.

Internal demos with our in-house crafters revealed that the multi-size workflow was manual and repetitive. They had to upload the same design multiple times with slightly different dimensions.

Power users described multi-size orders as a standard flow, not an edge case, needed to support different placements (front, sleeve, back) or garment types (t-shirts vs. hoodies).

Power users described multi-size orders as a standard flow, not an edge case, needed to support different placements (front, sleeve, back) or garment types (t-shirts vs. hoodies).

Power users described multi-size orders as a standard flow, not an edge case, needed to support different placements (front, sleeve, back) or garment types (t-shirts vs. hoodies).

Together, these findings confirmed that the issue was a mismatch between real workflows and what the system supported.

Together, these findings confirmed that the issue was a mismatch between real workflows and what the system supported.

Together, these findings confirmed that the issue was a mismatch between real workflows and what the system supported.

The problem

At Jiffy Transfers, users upload artwork to print custom heat transfers.

Users dropped off after uploading a design due to lack of sizing guidance, no visual preview, and unclear expectations.

🚫 56% of users abandoned the process at this step.

This confusion caused repeated actions, low conversion, and high support ticket volume.

INSIGHT #1

Confidence breaks down at the

Confidence breaks down at the sizing step

sizing step

After upload, many users hesitated to proceed. Without any visual confirmation or guardrails, they lacked confidence that their selected dimensions would print as expected — especially first-time or less experienced crafters.

“I just guess and hope it’s not too small when it prints.”

“I just guess and hope it’s not too small when it prints.”

INSIGHT #1

Confidence breaks down

at the sizing step

After upload, many users hesitated to proceed. Without any visual confirmation or guardrails, they lacked confidence that their selected dimensions would print as expected — especially first-time or less experienced crafters.

“I just guess and hope it’s not too small when it prints.”

INSIGHT #2

Users think in placement,

not inches

Most users didn’t think in inches. Their mental model was based on shirt type and design placement. Beginners lacked any frame of reference, while experienced users relied on familiar patterns like “10×10 for a front design.”

“I usually have to Google shirt design sizes or check my cheat sheet before I can even start, otherwise I have no idea what to enter.”

INSIGHT #3

Users create time -

consuming workarounds

to order multiple sizes

transfers

Users who needed different sizes of the same design manually re-uploaded the file multiple times (one upload per size). This repetitive workaround reflected a missing workflow for managing variation, leading to delays, frustration, and drop-offs.

"If I need three sizes, I upload the same file three times. It's just the same task over and over."

INSIGHT #4

Users lack visual context

for sizing decisions

Many users weren’t sure if the selected size would feel right on a real shirt. They found it difficult to imagine how the design would appear on a real shirt — especially when switching placements (e.g., front vs. sleeve) or garment types. This uncertainty contributed to hesitation and drop-off.

"I just couldn't tell if it would look too small or too big on the shirt. There's nothing that shows you how it'll actually turn out."

PROBLEM STATEMENT

Users struggle to choose the right transfer size after uploading a design, due to a lack of guidance, visual context, and clarity around placement.

This leads to confusion, repeated actions, and a drop-off rate among new users and directly impacts conversion and increasing support tickets.

INSIGHT #2

Users think in placement,

Users think in placement, not inches

not inches

Most users didn’t think in inches. Their mental model was based on shirt type and design placement. Beginners lacked any frame of reference, while experienced users relied on familiar patterns like “10×10 for a front design.”

“I usually have to Google shirt design sizes or check my cheat sheet before I can even start — otherwise I have no idea what to enter.”

“I usually have to Google shirt design sizes or check my cheat sheet before I can even start, otherwise I have no idea what to enter.”

INSIGHT #3

Users create time-consuming workarounds

Users create time-consuming

workarounds to order multiple

to order multiple sizes transfers

sizes transfers

Users who needed different sizes of the same design manually re-uploaded the file multiple times (one upload per size). This repetitive workaround reflected a missing workflow for managing variation, leading to delays, frustration, and drop-offs.

"If I need three sizes, I upload the same file three times. It's just the same task over and over."

"If I need three sizes, I upload the same file three times. It's just the same task over and over."

INSIGHT #4

Users lack visual context for sizing decisions

Users lack visual context for

sizing decisions

Many users weren’t sure if the selected size would feel right on a real shirt. They found it difficult to imagine how the design would appear on a real shirt — especially when switching placements (e.g., front vs. sleeve) or garment types. This uncertainty contributed to hesitation and drop-off.

“I just couldn’t tell if it would look too small or too big on the shirt. There’s nothing that shows you how it’ll actually turn out.”

"I just couldn't tell if it would look too small or too big on the shirt. There's nothing that shows you how it'll actually turn out."

PROBLEM STATEMENT

Users struggle to choose the right transfer size after uploading a design, due to a lack of guidance, visual context, and clarity around placement.

This leads to confusion, repeated actions, and a drop-off rate among new users and directly impacts conversion and increasing support tickets.

Users struggle to choose the right transfer size after uploading a design, due to a lack of guidance, visual context, and clarity around placement.




This leads to confusion, repeated actions, and a drop-off rate among new users and directly impacts conversion and increasing support tickets.

ITERATION #1: DETOUR

ITERATION #1: DETOUR

Lightweight multi-size support, a fast strategic release

Discovery revealed multiple opportunities. We prioritized two interconnected issues that could reduce workflow friction while building for scale:


1. Users were unsure what size to enter after uploading

2. Many re-uploaded the same image multiple times to order different sizes

Discovery revealed multiple opportunities. We prioritized two interconnected issues that could reduce workflow friction while building for scale:


1. Users were unsure what size to enter after uploading

2. Many re-uploaded the same image multiple times to order different sizes

Discovery revealed multiple opportunities. We prioritized two interconnected issues that could reduce workflow friction while building for scale:


1. Users were unsure what size to enter after uploading

2. Many re-uploaded the same image multiple times to order different sizes

We prioritized this to

We prioritized this to

Reduce workflow friction

Reduce workflow friction

Allow users to select all needed sizes in one

upload, eliminating unnecessary steps and

repeat actions.

Allow users to select all needed sizes in one upload, eliminating unnecessary steps and repeat actions.

Allow users to select all needed sizes in one upload, eliminating unnecessary steps and repeat actions.

Optimize resource use

Optimize resource use

Each image was enhanced once per session, reducing backend strain and saving AI prompt credits.

Each image was enhanced once per session, reducing backend strain and saving AI prompt credits.

Ship impact fast

Ship impact fast

Deliver measurable UX and system

improvements in weeks, without major

architectural changes.

Deliver measurable UX and system

improvements in weeks, without major

architectural changes.

Deliver measurable UX and system

improvements in weeks, without major architectural changes.

Build for what’s next

Build for what’s next

Create the structural foundation needed for

future features like smart size suggestions and

visual guidance.

Create the structural foundation needed for future features like smart size suggestions and visual guidance.

Create the structural foundation needed for future features like smart size suggestions and

visual guidance.

THE OPPORTUNITY

THE OPPORTUNITY

Discovery revealed that users were already mentally grouping sizes together.


"I need a 10×10 for the front and 6×6 for the sleeve".


But the system forced them to re-upload the same image for each size increasing frustration, repetition, and drop-off.

Discovery revealed that users were already mentally grouping sizes together.


"I need a 10×10 for the front and 6×6 for the sleeve".


But the system forced them to re-upload the same image for each size increasing frustration, repetition, and drop-off.

THE SOLUTION

THE SOLUTION

Enable users to add multiple sizes of the same design within a single upload session.


This small but strategic change aligned with real user behavior, reduced friction, cut backend strain, and laid the groundwork for a more scalable experience.

Enable users to add multiple sizes of the same design within a single upload session.


This small but strategic change aligned with real user behavior, reduced friction, cut backend strain, and laid the groundwork for a more scalable experience.

Enable users to add multiple sizes of the same design within a single upload session.


This small but strategic change aligned with real user behavior, reduced friction, cut backend strain, and laid the groundwork for a more scalable experience.

Ideation & rapid prototyping

Ideation & rapid prototyping

Mapped scope and impact

Mapped scope and impact
Led a focused working session with product and engineering to define a minimal solution that would deliver clear user value without introducing technical debt.

Led a focused working session with product and engineering to define a minimal solution that would deliver clear user value without introducing technical debt.

Mapped scope and impact
Led a focused working session with product and engineering to define a minimal solution that would deliver clear user value without introducing technical debt.

Built directly into the flow

Built directly into the flow
Designed and prototyped the multi-size interaction using existing upload logic, ensuring seamless integration and fast developer handoff.

Designed and prototyped the multi-size interaction using existing upload logic, ensuring seamless integration and fast developer handoff.

Built directly into the flow
Designed and prototyped the multi-size interaction using existing upload logic, ensuring seamless integration and fast developer handoff.

Validated with diverse users

Validated with diverse users
Ran targeted testing sessions with both new and returning users to confirm the solution improved clarity, reduced effort, and eliminated repeat uploads.

Ran targeted testing sessions with both new and returning users to confirm the solution improved clarity, reduced effort, and eliminated repeat uploads.

Validated with diverse users
Ran targeted testing sessions with both new and returning users to confirm the solution improved clarity, reduced effort, and eliminated repeat uploads.

Validation results

Validation results

Usability testing confirmed the multi-size workflow solved the repetitive upload problem and all participants easily found and used 'Add Another Size.' However, testing revealed the deeper issue: participants consistently expressed uncertainty about choosing dimensions ('I don't know what size to put for S, M, L'). One participant specifically requested preset labels like 'Adult' or 'ideal for Kids'

Usability testing confirmed the multi-size workflow solved the repetitive upload problem and all participants easily found and used 'Add Another Size.'


However, testing revealed the deeper issue: participants consistently expressed uncertainty about choosing dimensions ('I don't know what size to put for S, M, L'). One participant specifically requested preset labels like 'Adult' or 'ideal for Kids'

Usability testing confirmed the multi-size workflow solved the repetitive upload problem - all participants easily found and used 'Add Another Size.' However, testing revealed the deeper issue: participants consistently expressed uncertainty about choosing dimensions ('I don't know what size to put for S, M, L'). One participant specifically requested preset labels like 'Adult' or 'ideal for Kids'

94%

94%

Task Completion Rate

Task Completion Rate

15+ users across segments

15+ users across segments

Low

Low

Implementation Risk

Implementation Risk

Clear technical path

Clear technical path

3wks

3wks

Time to Market

Time to Market

vs. 2+ months for full solution

"Very simple, intuitive, step-by-step process worked beautifully"

"Very simple, intuitive, step-by-step process worked beautifully"

Usability testing participant

I would be confused, as I don't know what size to put for S, M, L... I might want to see the t-shirt size, so I can put in right transfer size for it.

I would be confused, as I don't know what size to put for S, M, L... I might want to see the t-shirt size, so I can put in right transfer size for it.

Usability testing participant

ITERATION #2: SOLVING THE MAIN PAIN POINTS REVEALED

ITERATION #2: SOLVING THE MAIN PAIN POINTS REVEALED

Defining the new standard in transfers sizing

Defining the new standard in transfers sizing

Defining the new standard in transfers sizing

Back to the main problem

Back to the main problem

PROBLEM STATEMENT

Users struggle to choose the right transfer size after uploading a design, due to a lack of guidance, visual context, and clarity around placement.

This leads to confusion, repeated actions, and a drop-off rate among new users and directly impacts conversion and increasing support tickets.

Users struggle to choose the right transfer size after uploading a design, due to a lack of guidance, visual context, and clarity around placement.

This leads to confusion, repeated actions, and a drop-off rate among new users and directly impacts conversion and increasing support tickets.

PROBLEM STATEMENT

Users struggle to choose the right transfer size after uploading a design, due to a lack of guidance, visual context, and clarity around placement.

This leads to confusion, repeated actions, and a drop-off rate among new users and directly impacts conversion and increasing support tickets.

Iteration #2 Objectives

Iteration #2 Objectives

With multi-size support in place, our next objective was

  1. Close the confidence gap around sizing, especially for less experienced users, and

  2. Streamline the workflow so users could select multiple options without manually entering width and height each time.

With multi-size support in place, our next objective was

  1. Close the confidence gap around sizing, especially for less experienced users, and

  2. Streamline the workflow so users could select multiple options without manually entering width and height each time.

Key business goals: Reduce post-upload drop-off, increase order value via multi-size, cut sizing support tickets.

Key business goals: Reduce post-upload drop-off, increase order value via multi-size, cut sizing support tickets.

Key business goals: Reduce post-upload drop-off, increase order value via multi-size, cut sizing support tickets.

Design challenge: one order → eight print sizes

Design challenge:
one order → eight print sizes

A crafter receives a single order with back + left-chest prints and mixed adult/youth/toddler counts.

A crafter receives a single order with back+ left-chest prints and mixed adult/youth/toddler counts.

Multiple placements

back + left chest


Mixed apparel & sizes

adult (L/M), youth, toddler


Quantities per size

12, 8, 6, 2


Result

8 different sizes

Multiple placements

back + left chest


Mixed apparel & sizes

adult (L/M), youth, toddler


Quantities per size

12, 8, 6, 2


Result

8 different sizes

Quantities per size

12 • 8 • 6 • 2

Multiple placements

back + left chest


Mixed apparel & sizes

adult (L/M), youth, toddler


Quantities per size

12, 8, 6, 2


Implications

8 different sizes

Quantities per size

12 • 8 • 6 • 2

Multiple placements

back + left chest


Mixed apparel & sizes

adult (L/M), youth, toddler


Quantities per size

12, 8, 6, 2


Implications

8 different sizes

Quantities per size

12 • 8 • 6 • 2

Current process diagram

Current process diagram

Current process diagram

Ideation & Strategic Direction

Ideation & Strategic Direction

Based on research revealing that users think in placement contexts while the system required dimensional inputs, I facilitated cross-functional workshops to reframe the challenge.

Based on research revealing that users think in placement contexts while the system required dimensional inputs, I facilitated cross-functional workshops to reframe the challenge.

Key design questions

Key design questions

Key design questions

How might we help users feel confident choosing sizes without thinking in dimensions?

How might we help users feel confident choosing sizes without thinking in dimensions?

How might we help users feel confident choosing sizes without thinking in dimensions?

How might we support multiple placements without overwhelming the interface?

How might we support multiple placements without overwhelming the interface?

How might we support multiple placements without overwhelming the interface?

How might we serve both beginners and experts in the same flow?

How might we serve both beginners and experts in the same flow?

How might we serve both beginners and experts in the same flow?

I led workshops with Product, Engineering, Customer Support, and Operations to generate solution approaches, then worked with PM to refine viable flows and identify technical constraints.

I led workshops with Product, Engineering, Customer Support, and Operations to generate solution approaches, then worked with PM to refine viable flows and identify technical constraints.

Exploring four distinct approaches to the sizing interface,
from manual dimension input to automated placement-based calculation.

Exploring four distinct approaches to the sizing interface, from manual dimension input to automated placement-based calculation.

Strategic direction: placement-driven smart sizing

Strategic direction: placement-driven smart sizing

Instead of trying to teach users about dimensions, we decided to automate the sizing logic based on both placement and apparel size.

Users choose placement first (Full Front vs. Left Chest) and size group (Adult, Youth, Kids), then the system generates appropriate dimensions automatically.

Instead of trying to teach users about dimensions, we decided to automate the sizing logic based on both placement and apparel size. Users choose placement first (Full Front vs. Left Chest) and size group (Adult, Youth, Kids), then the system generates appropriate dimensions automatically.

Why this approach?

Why this approach?

Research showed professionals think in placement-specific terms ("10x10 works for full front adult"), while beginners have no reference point. By letting the system translate placement + size intent into exact dimensions, we eliminate guesswork while maintaining accuracy.

Research showed professionals think in placement-specific terms ("10x10 works for full front adult"), while beginners have no reference point. By letting the system translate placement + size intent into exact dimensions, we eliminate guesswork while maintaining accuracy.

Key decisions

Key decisions

Contextual sizes

Contextual sizes

System calculates dimensions based on placement and size selection

System calculates dimensions based on placement and size selection

System calculates dimensions based on placement and size selection

Progressive disclosure

Progressive disclosure

Start simple, reveal complexity only when needed

Start simple, reveal complexity only when needed

Start simple, reveal complexity only when needed

Manual controls

Manual controls

Manual dimension input remains accessible for power users

Manual dimension input remains accessible for power users

Manual dimension input remains accessible for power users

This transforms a complex sizing decision into two simple choices (placement + size category), with automation handling the dimensional calculations.

This transforms a complex sizing decision into two simple choices (placement + size category), with automation handling the dimensional calculations.

Cross-functional collaboration & alignment

Cross-functional collaboration & alignment

Aligning stakeholders required navigating competing priorities - PMs wanted fast delivery to improve metrics, Engineering worried about sizing logic complexity, and Customer Support pushed for clearer terminology.

Aligning stakeholders required navigating competing priorities - PMs wanted fast delivery to improve metrics, Engineering worried about sizing logic complexity, and Customer Support pushed for clearer terminology.

They key conflict

They key conflict

Product Managers proposed removing visual placement elements entirely to accelerate launch, arguing text-based options would be simpler to implement.

Product Managers proposed removing visual placement elements entirely to accelerate launch, arguing text-based options would be simpler to implement.

My compromise strategy

My compromise strategy

I proposed a phased visual approach using Phase 1 user testing data. Since participants had specifically requested visual context ("I'd like to see the design on a t-shirt") and 60% of support tickets involved placement confusion, I argued for starting with simple t-shirt outline illustrations, then upgrading to full mockups with color options in a fast follow.

I proposed a phased visual approach using Phase 1 user testing data. Since participants had specifically requested visual context ("I'd like to see the design on a t-shirt") and 60% of support tickets involved placement confusion, I argued for starting with simple t-shirt outline illustrations, then upgrading to full mockups with color options in a fast follow.

The resolution

The resolution

The team agreed to launch with basic t-shirt silhouettes showing placement areas, then iterate to realistic mockups based on initial user feedback and usage data. This phased approach satisfied engineering's timeline concerns while preserving the visual guidance users needed.The realistic mockups became crucial to user confidence. Validation confirmed that visual context was essential for sizing decisions.

The team agreed to launch with basic t-shirt silhouettes showing placement areas, then iterate to realistic mockups based on initial user feedback and usage data. This phased approach satisfied engineering's timeline concerns while preserving the visual guidance users needed.The realistic mockups became crucial to user confidence. Validation confirmed that visual context was essential for sizing decisions.

Solution & Design

Solution & Design

Following usability testing and A/B validation with 10% of users, we launched the placement-driven interface to all customers.

Following usability testing and A/B validation with 10% of users, we launched the placement-driven interface to all customers.

Validation results

Validation results

Testing the placement-based sizing approach with both new users and existing Jiffy customers confirmed the solution addressed the confidence gap and workflow efficiency problems while delivering significant time savings across user segments.

Testing the placement-based sizing approach with both new users and existing Jiffy customers confirmed the solution addressed the confidence gap and workflow efficiency problems while delivering significant time savings across user segments.

Testing the placement-based sizing approach with both new users and existing Jiffy customers confirmed the solution addressed the confidence gap and workflow efficiency problems while delivering significant time savings across user segments.

96%

96%

Task Completion Rate

Task Completion Rate

20+ users: new & existing
customers

20+ users: new & existing customers

High

High

User Satisfaction

User Satisfaction

Strong preference over
current flow

Strong preference over current flow

"Oh my God I love this! I like that it gives you guidelines for sizes!
This will save tremendous amount of time for me."

"Oh my God I love this! I like that it gives you guidelines for sizes!
This will save tremendous amount of time for me."

Existing Jiffy customer

The is top of mind, very straightforward, and simple.
Super easy to select the sizes."

The is top of mind, very straightforward, and simple.
Super easy to select the sizes."

New user testing participant

The impact

The impact

The redesign delivered measurable improvements across user confidence, order speed, and overall conversion directly supporting business growth.

The redesign delivered measurable improvements across user confidence, order speed, and overall conversion directly supporting business growth.

62%

62%

62%

Drop-off Rate

Drop-off Rate

Drop-off Rate

56% → 21%

56% → 21%

56% → 21%

45%

45%

45%

New users

New users

New users

Conversation rate

Conversation rate

Conversation rate

34%

34%

34%

Support tickets

Support tickets

Support tickets

Sizing-related issues

Sizing-related
issues

Sizing-related issues

70%

70%

70%

Time to Cart

Time to Cart

Time to Cart

10min → 3min

10min → 3min

10min → 3min

Setting a new standard in the industry

Setting a new standard in the industry

One of our long-time users, a creator with over 1M subscribers on YouTube, featured the new experience in her video. Watch Youtube Video

One of our long-time users, a creator with over 1M subscribers on YouTube, featured the new experience in her video. Watch Youtube Video

Even beginners can now size with confidence!

Even beginners can now size with confidence!

Jennifer Maker

Within months, competitors began adopting similar flows, reinforcing that our solution had set a new UX benchmark in the space.

Within months, competitors began adopting similar flows, reinforcing that our solution had set a new UX benchmark in the space.

© 2025 Anna Vasyukova

© 2025 Anna Vasyukova

© 2025 Anna Vasyukova