Reference
Virtual try-on & apparel fit glossary
The technical and industry terms used across this site, defined in plain language. If you've run into a phrase like "vanity sizing," "garment draping," or "bracketing" and weren't sure what it meant, this is the place to look it up.
Last updated June 2026 · wearfits.me editorial
- Generative-AI virtual try-on
- A tool that generates a photorealistic image of you wearing a chosen garment, from a single photo or just your height and size. It renders how the fabric drapes, plus its texture, color, and shadows, on your own body.
- AI pose detection
- The step where the AI reads your pose — how you're standing and how your limbs are positioned — from your photo, so the garment can be rendered on your body in a natural, accurate way.
- Body detection
- The step where the AI reads your body shape and proportions from your photo, so the rendered garment sits on your actual figure rather than a generic mannequin.
- Garment draping (rendering)
- How the AI depicts the way fabric falls, folds, and hangs on your body, along with its texture, color, and shadows. Realistic draping is what makes a try-on look like a real photo instead of a flat overlay.
- AR try-on (augmented reality)
- A try-on method that shows a live overlay of a garment on you through your camera. It's engaging and good for movement, but results are stylized rather than photorealistic and limited to garments specifically prepared for AR.
- Fit model
- The person a brand uses to wear and photograph its clothing. On-model product photos show the garment on a fit model who usually isn't your body type, so you have to mentally translate the look onto yourself.
- Size chart
- A table of body or garment measurements a brand provides to help you pick a size. It gives accurate numbers but no picture, so you have to imagine the cut, drape, and look entirely from measurements.
- Vanity sizing
- The practice of labeling garments with a smaller size than their actual measurements would suggest. Because it's inconsistent between brands, the same label number can fit very differently from one retailer to the next.
- Bracketing
- When a shopper deliberately orders several sizes or colors of an item intending to keep one and return the rest. It's driven by sizing uncertainty and inflates apparel return volume on top of genuine fit misses.
- Return rate
- The share of ordered items that get sent back. Online apparel return rates run well above other ecommerce categories — often roughly two to three times the rate of general merchandise — largely because shoppers can't try anything on before it ships.
- Conversion rate
- The share of shoppers who actually complete a purchase. Try-on and virtual advisor journeys are reported to convert at much higher rates than traditional ecommerce because they raise purchase confidence.
- ROAS (return on ad spend)
- Return on ad spend — how much revenue an advertiser earns for each unit of money spent on advertising. It's commonly cited when measuring the commercial impact of try-on experiences.
- Expectation gap
- The difference between how a shopper pictures a garment before buying and how it actually fits and looks on them. Closing this gap — by showing the item on your own body — is the main way virtual try-on helps reduce returns.
See these terms in action
Want to see what generative-AI try-on, pose detection, and garment draping actually look like? Preview a garment on your own body from a single photo or your height and size.