Case Study: Adi-fit

Adi-Fit was developed to help users utilize more accurate sizing and understand features within products to match performance needs.

Project Breakdown

Background

The apparel industry, particularly clothing and shoe companies, faces a significant challenge in revenue loss due to returns caused by incorrect sizing. This issue not only impacts profitability but also affects customer satisfaction and brand reputation.

Timeline

11 weeks

Tools Used

Figma, Photoshop, After Effects, Premiere Pro, Excalidraw, Survicate, Whimsical, Sketch

My Role

Sole UX Designer & Researcher

Scope

Observational research, market research, surveys, user interviews, user persona, task flow, user flow, wireframes, usability testing, high-fidelity prototype

Challenge

Devise and implement effective solutions within the Adidas app that enhance the user experience by assisting users in accurately determining the right shoe size, thereby reducing returns and improving overall customer satisfaction.

How did we arrive here?

defining the problem

BY uncovering pain points

I discovered large gaps between user shopping experience online versus brick and mortar locations.

01

Sizing and fit uncertainty hinders online shoe purchases.

02

Matching shoes to specific user needs online is difficult.

through market Research

understanding the numbers

As online shopping grows, addressing sizing issues is crucial to enhance the shoe shopping experience, minimize returns, and maximize profits.

+10%

Average growth of US online shoe industry between 2018 and 2023.

46%

of users that are more likely to make online purchases for shoes if they know that it will fit.

40%

Shoes bought online typically have the highest return rates at 30% to 40%.

Interviews & Surveys

Research Findings

A majority of participants struggled to find the correct shoe size, particularly when trying new brands or styles.

A quick in-app sizing tool would significantly improve the shopping experience and increase customer loyalty. Additionally, providing clear guidance on shoe selection for specific activities could further enhance customer satisfaction.

Feature adoption

84% of survey participants and all interview participants would use an in app sizing feature if it took 5 minutes or less to complete.

Sizing difficulties

72% of survey participants and all interviews have had a difficult time finding the correct size with new companies.

Positive returns

100% of survey and interview participants would return to a company in the future with positive shopping results.

Selection uncertainty

All interviewees were unsure how to choose shoes for new activities during their user task.

Research run-down

What did our interviewees have to say?

Selection overload can be a problem, there's just too many option out there...

Hunter

If I'm not familiar with the brand, I typically just guess my shoe size and hope for the best.

Stacy

ideating possible solutions

What do our users need to help them with the online shoe shopping process?

user goals

Easily find shoes online that fit

Discover the best shoes based on need

possible solutions

Create a reliable sizing recommendation tool

Build a tool that assists users in selecting shoes based on specific requirements.

analyzing to design

HOW MIGHT WE ELIMINATE THE CONFUSION ASSOCIATED WITH ONLINE SHOE SIZING AND EMULATE THE IN-PERSON SHOE FITTING EXPERIENCE?

a User Persona was created...

to develop user flows.

cleat research Flow

In an attempt to find a community in a new city, Amanda joins an indoor flag football team. Knowing nothing about the indoor cleats required to play, Amanda begins researching indoor turf cleats online.

to understand user and app feature needs.

to build wireframes

I built a prototype

to test the solutions that were developed to help users find the right shoes that fit.

user goal

Easily find shoes online that fit

Attempted solution

Create a reliable sizing recommendation tool.

measuring a foot

Developed a LIDAR-based foot mapping process using iPhone cameras to create a 3D foot model aligned with shoe manufacturer lasts. The process captures comprehensive foot data, including top, inside, outside, and bottom measurements.

User instructions

Comprehensive visual tutorials and step-by-step instructions guided users through the four-step foot measurement process. Each measurement included progress bars, visual cues, and clear success/failure indicators to ensure accurate results.

foot measuring results

The results page provides a comprehensive breakdown of user foot measurements, including width, arch height, length, and ankle height. Clear explanations accompany each measurement, detailing its impact on shoe fit and overall comfort.

user goal

Discover the best shoes based on need

Attempted solution

Build a tool that assists users in selecting shoes based on specific requirements.

relevant user information

Height and weight influence shoe design by informing body proportions and weight distribution, impacting fit, comfort, and overall aesthetics.

user discovery

I developed a series of questions based on Adidas shoe line and the potential needs of a user. Research into soccer and indoor cleats helped determine different cleats needs based on play surface requirements, play styles, position needs, and skill level.

tailored shoe results

The results page offers tailored shoe suggestions based on user input. A limited selection of options is presented to the user, each detailed with foot fit and benefit information based on specific shoe features.

Testing the prototype

I conducted moderated usability tests to determine effectiveness of solutions

4 tasks

5 users with little to no Adidas shoe size knowledge

Completed and recorded over Zoom

Determine proof of concept validity

User insights and impressions

Usability breakdown

Iterating on usability findings

Turning insights into actions

painpoint

80% of users reported feeling overwhelmed by the volume of foot measurement data presented.

Attempted solution

Using Hick's Law principles, I presented limited information that could be viewed in-depth if user desired to eliminate information overload and/or decision fatigue.

Pain Point

80% of participants voiced confusion on how to use the camera during the sizing process.

Attempted solutions

Visual prompts were enhanced in all camera screens

Added concise phrasing on instructions to help users to use camera as intended

Iterations

Drag the slider from left to right to see the progression from early sketches to the final High-fidelity prototype.

Video of the Prototype

reflecting on the case study

what can be learned?

Personalizing purchases

Customization is key for online shoppers seeking in-person experiences. Tailored options enhance the online shopping experience.

Look beyond the present

LIDAR, already in use today, offers promising applications for footwear. AI and VR will be crucial for designing future-focused UX/UI experiences.

Next steps

future decisions

Further refinement

To optimize user experience in the app, further exploration of diverse shoe options (e.g., football cleats, skateboard shoes, basketball shoes) and refining filtering methods with more specific questions would be advantageous.

Refinement research

Utilizing A/B testing, card sorting, and understanding user preferences can help determine the most effective approach to meet user needs in selecting their shoe options.