Parisian Pet Dog Cat Clothes Tee Shirts Mommy's Boy, Daddy's Girl, Big Brother, Big Sister, Little Brother, Little Sister, I Love Mommy, I Love Daddy soft, flexible, breathable, washable, 100% Cotton material for added comfort. more than 80 funny and cute styles to choose from! Mix & match, collect them all! Please refer to sizing chart As our sizing runs small. measure your dog from the base of the neck to the base of the tail for back Length. excellent quality materials and very detailed embroidered dog T-Shirt designs. Can be used in any occasion!