This dog nappy is made of polycotton. It is very durable, hand washable and line dry. All edges are completely bound with a nylon ribbon type binding, affording a comfortable fit for your dog.The adjustment is made with heavy duty velcro. Making this a really great fashionable addition to the dogs wardrobe. Eliminates Messes From: Excitable Urination Incontinence Male Marking Females in Season Puppies who are not yet housetrained A sanitary pad may be added for additional security. Contents: 1 x Dog Diaper Specs: Material: Polycotton Sizes: To ensure an accurate fit, please measure your dog waist correctly guided by picture below, and compare your measurement with following items measurements. WAIST GIRTH (cm) MEDIUM 28cm - 40cm LARGE 36cm - 54cm XLARGE 44cm - 66cm Care maintenance: Wash inside out separately before use Do not bleach, Do not tumble dry.