Simple Solution X-Small Washable Diaper for Dogs 4 lbs - 8 lbs and waist size of 9 in - 14 in provides super-absorbent, long-lasting protection;X-Small washable dog diapers are made from a microfiber fabric, have a tail hole and repositionable closures to provide a comfortable and secure fit;Each washable diaper has a moisture-wicking liner to protect skin and coat, super-absorbent microfiber pad, and a plastic liner for leak protection;Perfect for dogs with urinary incontinence, female dogs in heat, excitable urination, and traveling;Contains 1 machine-washable diaper; for extra added protection use with Simple Solution Disposable Liners