This pet tank is 100% cotton for base colors but includes polyester in heather variations. It is safe to machine wash and comes in two sizes: Large &  XL. For breeds with larger chests, sizing up is recommended.

.: 100% combed ringspun cotton .: Medium fabric (5 oz/yd² (169 g/m²)) .: EasyTear™ label .: Note: For breeds with a larger chest, purchase one size up from the weight range. Pet tanks run small .: NB! Pre-constructed item. Size variance +/- 1" - 2"