If you have a dog that's rockin', the Dogs Rock and Roll Dog T-Shirt by PetRageous is a perfect statement! The attractive aqua shirt has royal blue trim at neck and arm openings and has "Dogs Rock and Roll" printed on the back in a fun font and vibrant colors. Pullover style with high-cut belly. Made of 35% cotton, 65% polyester. Machine washable. Sizing Information: X-Small - 7-9" Length, 14" Girth, dogs 4-12 lbs. Small - 10-13" Length, 18" Girth, dogs 12-20 lbs. Medium - 14-17" Length, 22" Girth, dogs 20-35 lbs.