Our all weather collars are a durable alternative to leather. They are made with sustainable recycled poly canvas and solid brass, for pups who love to explore. * Made by hand in Australia * Canvas exterior - made from recycled plastic bottles * Synthetic core for strength - made from recycled plastic bottles * Cruelty-free * Sewn and hand riveted * Solid brass hardware This collar comes in 4 size variations: S, M, L, XL The size range given suits the loose neck measurement of the dog. Small: 25cm - 31cm (10"-12") Medium: 31cm - 38cm (12" - 15") Large: 38cm - 45cm (15" - 18") Extra Large: 45cm - 52cm (18" - 20 1/2")