About Sizely
We make the right size obvious. For everyone who sells, and everyone who buys.
The size label is broken
Everyone has ordered something online that did not fit. A tag says M, but M is a different garment on every brand, every decade, every country. So buying clothes became a guess, and a guess that misses comes back. The whole market quietly runs on one thing instead. The real measurements. Tags lie. Measurements don't.
What we believe
Fit should not be a gamble. The numbers that describe how something actually fits already exist, hidden in a tag, a spreadsheet, or a tape measure in a drawer. Our mission is to drag them into the open and make the right size obvious, for everyone who sells and everyone who buys. That belief runs through everything we make.
It starts with the seller
Sizely turns the real measurements of anything you sell, a vintage tee, a pair of boots, even a dog vest, into a clear chart a buyer can read at a glance. Over 85,000 sellers use it across eBay, Poshmark, Shopify and their own stores, and Seller Studio gives them the photos and the listing copy to match. Every chart they make is one more item a shopper no longer has to guess about.
We taught a phone to measure
Measuring by hand is honest work, but it does not scale to a catalog of thousands. So we built Size AI: it reads a garment straight from an iPhone in seconds, using the LiDAR sensor most people already carry in their pocket. The same belief, captured automatically, for the sellers moving fastest.
Where this goes
Every chart drawn by hand and every garment read by camera adds to a truer record of how clothing actually fits. That record is the future we are building toward: a world where a shopper finds their fit in any store, and “what size am I?” stops being a question at all. Sellers make the right size obvious. Everyone who buys gets to trust it.
Why it matters
When fit is a guess, clothes ship out and come right back, costing sellers money and sending a steady stream of returns through shipping and landfill. Getting size right is not just good business. It is less waste, less friction, and a small fix to the way the world buys and sells clothes.