Necessity: Dog diapers are the best choice for you, as your cute dogs are untrained or unwell or have digestive issues, and dogs that suffer from excitement urination or incontinence. Size: There 3 sizes for the male dog diapers, M/L/XL. You can choose the size after measuring your dog's waist to ensure a good fit, details as below. Size: M: Waistline 13.4 -17.3 inches (34-44 cm) L: Waistline 17.3-21.3 inches (44-54 cm) XL: Waistline 21.3-27.5 inches (54-70 cm) Water absorption test results: Male dog diaper XL: 180ml Male dog diaper L: 100ml Male Dog Diaper M : 70ml Material: Cover Outer is made of environmental TPU, which is colorful printed and super waterproof. Middle is soft elastic film, which is soft and comfortable for your dogs. Inner is polyester mesh. Advantages: Machine-washable, easy-to-use diaper wraps for dogs, so your dogs can accept out diapers easily. Besides, it is reusable and environmentally friendly. Economical: The diaper can be prolonged use, because of the adjustable design and reusable feature. Save more money when you reuse the cloth diapers.