This is a Ezydog Small Red Neo Classic Dog Collar (34cm to 38cm) Ezy Dog. The collars are made from high-grade neoprene, a soft rubber material that is used in wetsuits. Neoprene is easy to clean, quick to dry and waterproof! We then reinforce them with our proprietary soft touch nylon webbing, for added strength and durability. Like all the rest of our collars, the D-Ring is made from stainless steel so will not rust. Meaning that your dog really can go anywhere and you will not have to wonder whether they will need a new collar afterwards!