I got this shirt for my dog but the one I already have for her has been holding up fine! This brand new with tags dog shirt needs a new home! Here is the description from Life is Good: No dynamic duo is complete without matching tees. This durable, cotton blend tee will have you and your pup #twinning in no time. Large – Girth: 26" – Fits dogs between 20-40 Ibs. Cotton blend for durability and comfort. Goes over the head and front legs. It is just as soft as other Life is Good shirts. Style your pup today! My dog weighs a lean 55 Ibs. and the large fit just fine!