How to choose the size? Size S is suitable for small puppies and dogs with a waist size of 9 to 15 inches. Size M is suitable for medium dogs with a waist size of 14 to 20 inches. Size L is suitable for larger dogs with a waist size of 19 to 27 inches. Please choose the size after measuring your dog's waist to ensure a good fit. Why do female dogs need diapers? For untrained or unwell dogs, those with digestive issues, females in heat, and dogs that suffer from excitement urination or incontinence. When should we choose a female dog diaper? The waterproof outer layer helps prevent leaks and damage to your rugs, carpets, chairs, and sofa at home. It also protects your car seat when you travel. What is the dog diaper made of? The cover outer is made of environmental TPU, which is colorful printed and waterproof. The middle is a two-layer microfiber pad, which is absorbent and comfortable. The inner is polyester mesh, which helps keep the diaper breathable and dry. How to wash the dog diaper? The dog diapers are hand and machine washable. They are suitable for quick air drying or low-temperature laundry drying for prolonged use. Reusing these cloth dog diapers is economical and environmentally friendly. Condition: New. Origin: China.