I bought this before, but my dog only wore it once and outgrew it, so I put it away. The size is official Giants merchandise, so I believe it's the same as the official website's L size, but... I don't have anything to measure with, so I can't answer any questions about the size. It's listed as L. This dog outfit is made of mesh material for good breathability and features the GIANTS logo. - Brand: GIANTS - Color: White/Orange - Size: L - Design: Mesh dog outfit Thank you for looking.