Simple Solution Disposable Female Dog Diapers with adjustable fit feature a stretchable fabric that fits snugly around your pet. The super absorbent core locks in all moisture while leak-proof barriers provide added mess prevention that's guaranteed to work. With stretch waistband protection, your dog can move around freely while staying dry. The tail-hole and extra-long wings help them stay put on the wiggliest of dogs. Attaching and removing the diaper is safe and easy with Fur-Friendly Fasteners. The wetness indicator will tell you when to change them. The Medium size fits waists 15 - 23".