Collars by Kitt provides uncommon collars, martingales, and leashes for pet owners who need something special for their four-legged friend. These collars add the incomparable sparkle of Swarovski® Crystals to a Dog Collar that is waterproof, strong, secure, and comfortable for your dog. Collars by Kitt only uses BioThane coated webbing and stainless steel for their collars. No Leather. No Nylon. No Plated Metal. Only the best materials for your pup’s unique dog collars.