Features: Stylish, durable, and simple to clean Made from super strong, smooth, all-weather materials that are comfortable for pups to wear and dirt- and odor-resistant Hand wash with mild soap and warm water. Wipe dry with a towel or let air dry Specs: Materials:Flex-poly coated nylon webbing strap, zinc alloy buckle, and coated carbon steel D-ring XS: Neck Circumfrance = 7"-10", Strap Width = 1/2" S: Neck Circumfrance = 8"-12", Strap Width = 3/4" M: Neck Circumfrance = 12"-15", Strap Width = 3/4" L: Neck Circumfrance = 15"-18", Strap Width = 1" XL: Neck Circumfrance = 18"-23", Strap Width = 1"