UX Design Course Project

Zalando App Redesign — Confidence Before Checkout

A playful, human way to cut size-related returns and make fashion more sustainable.

January 2025
Azin Ghasemi
SizingE-commerceGamificationSustainability
Zalando App Redesign — Confidence Before Checkout

Project Journey

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Project Overview
Project Overview
Duration: 4 weeks
Role: Product Designer (Research, UX, UI, Prototyping)
Reduce size-related returns by increasing size confidence and brand trust, using a lightweight, enjo...
Problem & Research
Problem & Research
Challenge: Fashion e-commerce is noisy: inconsistent brand sizing, low ...
Research: 5 methods • 5 key insights
Solution & Design
Solution & Design
Approach: Make 'finding your size' feel like a quick, fun check-in—not...
Features: 5 key features • 5 design steps
Impact & Results
Impact & Results
Metrics: 70% of test users called the sizing game "fun" or ...
Results: 3 key metrics • 3 next steps

Project Overview

I love Zalando's generous return policy—but as a product designer (and a frequent buyer), I kept wondering about the cost to the business and the planet. After one of those 'try-every-size' shopping sprees, I turned my curiosity into a project: could I help people feel confident about size before checkout, without killing the joy of fashion discovery?

Duration

4 weeks

Role

Product Designer (Research, UX, UI, Prototyping)

Tools

Figma, Miro, Google Forms, Notion

Team

Individual project

Project Goals

Reduce size-related returns by increasing size confidence and brand trust, using a lightweight, enjoyable flow that fits Zalando's experience and sustainability ethos.

Problem & Research

Problem Statement

Fashion e-commerce is noisy: inconsistent brand sizing, low review coverage, and decision fatigue push people to over-order and return. It's convenient for shoppers—but expensive for the planet and the business.

A. Research Methods

Conducted comprehensive research combining quantitative and qualitative methods to understand sizing challenges in fashion e-commerce.

Research methods overview and personas
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Research methods overview and personas

B. User Interviews and Empathy Map

10 in-depth interviews revealed emotional drivers behind sizing decisions and return behavior patterns.

User interview insights: Empathy Map
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User interview insights: Empathy Map

C. Competitive Analysis

Analyzed existing sizing tools and fit predictors to identify gaps and opportunities for improvement.

Competitive analysis findings
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Competitive analysis findings

Research Methods

  • Desk research on returns & sustainability across EU fashion e-commerce
  • Quantitative survey (n≈40) on size confidence and return behavior
  • 10 in-depth interviews to explore emotions behind cart decisions
  • Journey mapping from browse → try-at-home → return
  • Light competitor scan of sizing tools and fit predictors

Key Insights

  • Size mismatch is the #1 reason for returns; jeans are the hardest.
  • Many users never notice size tools—or don't trust them.
  • People enjoy the freedom to experiment (multiple sizes/colors).
  • Self-image and body confidence strongly influence purchase risk.
  • Decision overload (filters, brands, reviews) increases over-ordering.

Solution & Design Process

Solution Concept

Make 'finding your size' feel like a quick, fun check-in—not a form. Then map a single 'Zalando size' to each brand's chart and reinforce confidence at product pages and cart.

A. Sizing Game Design

Created a 5-step interactive sizing game that feels playful and quick, building user confidence through guided questions.

Sizing game interface design
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Sizing game interface design

B. Brand Mapping System

Developed a system to translate one 'Zalando size' across different brand sizing charts for consistency.

Brand mapping interface
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Brand mapping interface

C. Size Finder

Implemented Size Finder process before showing the Style Finder result for the best result.

Cart reassurance design
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Cart reassurance design

Key Features

  • Playful sizing game: 5 short steps to a personal 'Zalando size'.
  • Brand mapping: translate one Zalando size to each brand's fit.
  • Style finder: micro-quiz to reduce random, regretful purchases.
  • Cart reassurance: inline messages like "Most shoppers your size kept M in Brand X".
  • Optional precision: QR + paper tape flow to capture real measurements later.

Design Process

  • Affinity mapping to cluster return drivers and emotions.
  • Storyboard of 'confidence moments' before and after PDP.
  • Low-fi wireframes → interactive Figma prototype.
  • Usability test with 10 participants; iteration on tone, speed, and entry points.
  • Visual system aligned with Zalando's 'SMALL STEPS, BIG IMPACT' spirit.

Impact & Reflection

Key Metrics

Quantitative results from user testing and feedback

A. User Testing Results

70% of participants found the sizing game enjoyable and 40% felt more confident choosing sizes.

User testing results and feedback
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User testing results and feedback

B. Confidence Metrics

Quantitative results showed significant improvement in size confidence, especially for jeans and other difficult-to-size items.

Confidence improvement metrics
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Confidence improvement metrics

Reflection

Confidence is emotional before it's rational. If I respect the joy of discovery and minimize friction, people will share enough to get value back. The trick is to help—without lecturing—so the sustainable choice also feels like the delightful choice.

Next Steps

  • A/B test entry points: PDP vs. Size guide vs. Cart intercept.
  • Train brand-level confidence badges using purchase/return history.
  • Expand the style finder with community data and saved looks.

Interactive Prototypes

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Sizing Game Prototype
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interactive

Sizing Game Prototype

Interactive 5-step sizing game with playful microcopy and visual choices

Click to open prototype
Style Finder Game
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interactive

Style Finder Game

Interactive prototype demonstrating the style finder micro-quiz concept

Click to open prototype

Design Gallery

Explore the complete visual journey and design process

Persona snapshots and empathy map highlights about sizing and confidence
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Personas & empathy highlights

Key steps from browse to return with annotated confidence gaps
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User Flow

Low-fidelity wireframes of the 5-step sizing flow
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Sizing game wireframes

Design Gallery

Explore the complete visual journey and design process

Persona snapshots and empathy map highlights about sizing and confidence
🔍

Personas & empathy highlights

Key steps from browse to return with annotated confidence gaps
🔍

User Flow

Low-fidelity wireframes of the 5-step sizing flow
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Sizing game wireframes

Curious how a playful micro-flow can lower returns without killing conversion?

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