iRock AND iRoll! This witty iRock tank from the iStyle doggiewear collection is sure to get laughs from your dog's admirers! 100% pre-washed, combed cotton. Black with a white screenprint. Machine wash cold; tumble dry low. Why We Love It: The iRock Dog Tank Top is a clever addition for your dog's wardrobe! All of our iStyle Doggiewear tank tops are simple and comfortable for your dog. Get the entire collection of tanks for a fun and trendy addition to your dog's closet.