High Fidelity Prototype: iOS App

The Problem

Stanford students buy expensive clothes for one-off occasions (formals, themed parties, career fairs, and more) then never wear them again. Meanwhile, borrowing between friends happens constantly but runs entirely on awkward DMs and forgotten returns.

Key Insights

Students need three things to actually borrow instead of buy: visibility into what friends have available without asking every time, a way to coordinate the hand-off without a chain of texts, and a system for returns that doesn't rely on awkward reminders.

Concept

Closet Crush is a shared closet app for friend groups. You browse your friends' available clothing filtered by occasion, add items to a shopping bag, and tap "Borrow," which auto-suggests a hand-off time and generates a text to your friend. A "My Borrows" tab tracks active loans with return dates.

Hand-drawn wireframe of the Closet Crush flow — pages overview, navbar icons, profile page, and My Closet screen with friend list and add-listing popup
Hand-drawn wireframe of the Main Homepage — search bar, filter by occasion, clothing grid, item detail popup, shopping bag with Borrow action
Hand-drawn wireframe of the Overdue Items and Messages flows — sorted loan list, automatic return reminders, and conversation thread showing item being discussed

Design Decisions

Outcome and Next Steps

Closet Crush validated that the shopping-bag pattern transfers naturally to borrowing, and that friend-group trust removes the biggest hesitation around sharing clothes. Next steps include Stanford SSO integration for identity, a "style match" recommendation feature, and a pilot with various friend groups, plus partnering with the Office of Sustainability to track collective impact: clothes kept out of landfills, dollars saved, and emissions avoided.