The dressiest! The Adam Dog Shirt Collar is a formal dress-up collar with detachable silver tie. It's the perfect dog shirt collar for your formal event! The Adam Dog Shirt Collar has an easy-to-adjust hook and loop closure and is made of super-comfortable, super-stylish 50% cotton, 50% satin. In sizes XXS/XS, S/M, L/XL, XXL - see below for sizing information.