Scan your best-fitting shirt once — a bank card is the only ruler you need. GarmentDNA measures it to the millimetre and tells you exactly which size to buy, on any site, in any brand.
Lay your favorite shirt on any plain surface and place a bank card beside it. Every card on earth is exactly 85.6 × 54 mm — it's the ruler in the photo.
Computer vision finds the card, corrects the camera angle, traces the garment, and extracts chest, length, shoulder, sleeve, and hem — to the millimetre.
Paste any product's size chart (or link) and get a plain-language verdict: "Size M — 95% match. Chest 0.8 cm roomier, length identical."
Every garment scanned creates a structured fit profile. Together they become the world's largest database of how clothes actually fit — not how retailers' inconsistent size charts claim they do. That data unlocks an ecosystem:
"Will this fit customer X?" answered before checkout, on any storefront.
Fit-verified buy links — commission on purchases we made confident.
Verified measurements on every secondhand listing. No more "fits like a medium?"
Your closet, digitized and searchable — with fit as the organizing principle.
Agents need ground truth about your fit. GarmentDNA is that ground truth layer.
Sizing drives ~52% of apparel returns. Retailers pay to make that number fall.
Brands designing new lines against real-world fit distributions, not guesses.
of apparel returns cite sizing as the reason — the #1 cause, by far.
in projected retail returns for 2025. Nearly 1 in 5 online purchases goes back.
GarmentDNA measurement accuracy from a single phone photo with a bank card in frame.
body scans, tape measures, or fit quizzes required. Your favorite shirt already knows your size.