Vet's Best® Perfect-Fit Washable Female Dog Diaper is an ideal solution for female dogs that suffer from urinary incontinence, excitable urination, or are in heat. The Large/Extra Large size is for dogs with a 20-35 inch waist (such as bull terrier, and golden retriever). The built-in hook and eye belt is easy to use, a moisture-wicking liner keeps your dog dry and cozy, and the super-absorbent microfiber pads and leak-proof barrier provide peace of mind at home or on long trips.