Doog Medium Gray "X" Neoprene Collar: Doog's stylish, lightweight collars are made from quick dry, water friendly neoprene so they are great for dogs with sensitive skin and hot spots. The neoprene material contains an antibacterial agent and draws moisture away from the skin. Bonus: Comes with a silver doggie ID tag to engrave your pet's contact details onto. Adjustable from 12-18" 0.9" wide