The size that sells in three days vs the size that sits for three months

Two identical jumpers taught me more about sourcing than any guide. Same brand, same condition, same price I paid for both. One sold in three days.

The other's been sitting for three months. The only difference was the size on the label — and once you see the pattern, you can't unsee it. Here's the thing most resellers get wrong: they source on price. 'It's good, it's cheap, grab it.' But a bargain in a size barely anyone buys is just cheap dead stock.

Vinted demand isn't flat across sizes — it follows a curve. The common middle sizes have the deepest pool of buyers and sell fast and often. The extremes at each end have real buyers, but far fewer of them, so even a lovely item can sit for months waiting for the one person it fits.

The size on the label is often a better predictor of how fast something sells than the brand or the price. In womenswear, the middle of the high-street range is where buyers stack deepest and stock moves quickest; the very smallest and very largest ends are slower and need patience or sharper pricing. Menswear has its own version — common chest and waist sizes shift, extremes linger.

The size on the label is often a better predictor of how fast something sells than the brand or the price.

The exact fast sizes vary by category, but the principle is universal: buyers cluster in the middle. So when you're stood in the charity shop, weight your buying toward the middle-of-the-curve sizes you know sell, and only grab the extremes if the item's special enough or cheap enough to be worth the wait. And here's why it really matters: resale profit isn't just margin per item, it's how fast your cash cycles.

A hundred quid of stock in fast sizes might turn over three times while the same hundred in slow sizes turns once — same margin, triple the profit, purely from sourcing the curve. One honest caveat: the extremes do sell, and petite and plus buyers are loyal and underserved, so there's a genuine play in specialising there if that's your thing. But if you're sourcing general stock to turn fast — buy the middle.

VintSnap lists whatever you source in seconds, so the lever that's actually in your hands is what you buy. Buying the demand curve is about the cheapest edge there is.