This shower proof heavy nylon material dog coat has reflective edges for night time safety. Full chest protector to help keep your dog dry when walking through long grass etc. with easy on Velcro fastenings. The Stormguard design has been inspired by professional outdoor pursuits equipment. To ensure a good fit simply measure your dog from the base of its neck between his shoulder blades to the base of his tail following the line of his spine, then select the correct size.