DerFit gives every shopper the right fit at checkout — fewer wrong sizes, happier customers, and the fit data you've never had.
Calculate what returns cost you →Instead of a static size chart your customers have to interpret, DerFit uses a real AI body scan. Four quick photos, and your customer gets a precise size recommendation matched to your exact garment measurements — right at checkout.
No app download. No guessing. Just the right size.
A customer who gets the wrong size doesn't just send it back — they often don't come back at all. For a growing brand, that's the real cost: not the return, but the customer you lose for good.
DerFit makes sure they get it right the first time. Happier customers, more loyalty, and fit data that shows exactly how your products really fit.
Free to install · 30-day free trial