This is one of the best doggo shirts ever. It's a baseball tee style shirt with Beetlejuice on the back. It's new with tags and is a size XL... but Pax is 25lbs and he wears a medium now and it doesn't swallow him like an XL would. I think it's closer to a large personally... but the measurements are in the photos. If you have any questions about sizing please feel free to ask me and we'll make sure it'll fit your furbaby perfectly ❤️