Alfie Pet by Petoga Couture - Max Diaper Dog Sanitary Pantie (for Girl Dogs) Size Large fits waist girth (measures in front of the back legs) 20"- 24 Eliminates problems from untrained pups, females in season, incontinent dogs and excitable urination Place adhesive napkin on inside of garment to adsorb liquids Neoprene material which is suitable for all weather conditions Machine wash and reusable Small fits waist girth13.5&#034; - 16.6&#034; and suitable for dog breed such as Maltese, Miniature Pinscher, Toy Poodle Medium fits waist girth 16&#034; - 20&#034; and suitable for dog breed such as Jack Russel, Italian Greyhound, Shih Tzu Large fits waist girth 20&#034; - 24&#034; and suitable for dog breed such as Corgi, Beagle, French Bulldog XL fits waist girth23&#034; - 27&#034; and suitable for dog breed such as Cocker Spaniel, Brittany Spaniel, Border Collie, Whippet, Standard Schnauzer XXL fits waist girth27&#034; - 31&#034; and suitable for dog breed such asEnglish Pointer, Bassett Hound, Dalmatian, Standard Poodle, English Sheperd, Springer Spaniel; American Pitbull, Boxer