the three fields most sellers leave blank (and shouldn't)

Material. Pattern. Style.

Most sellers leave these blank because they're optional. Vinted's algorithm reads them as filters — when a buyer ticks 'cotton' or 'striped' in the search filters, your item *vanishes* if you didn't fill them in. It's not that you rank lower.

You don't appear at all. VintSnap reads these from the photo automatically. That's the whole point.

Fill them, even when you're guessing — a wrong answer beats a blank one for visibility.