Lillypet TM Dog Diaper Pant,Pet Dog Cotton Tighten Strap Sanitary Physiological Pants, Pet Underwear Diapers Black Stripe Large Keeps your female dog from staining your floors,vehicle,or furniture in its menstrual period These diapers are reusable. They DO NOT INCLUDE the ABSORBENT pads. Women's feminine napkin works perfectly and attach with the adhesive strip. You decide how thick or pad you need for your dog. Washable and reusable. Made of nice soft cotton, very comfortable for daily wear. Sizing for each dog is unique. We highly recommend you measure your pet precisely with a flexible tape measure to ensure an accurate fit. We recommend one size up for comfort if your dog's measurement is the higher end of the range listed. Material:Cotton Blend Size Choices: XS,S,M,L,XL