- Adjustable Size: Size S: Wasit 24-32CM(9" -12" ), Size M: Wasit 35-43CM(4"-17"), Size L: Wasit 40-49CM(16"-20"), Size XL: Wasit 50-59CM(19.7"-23.2"), please measure your dog's waist directly in front of the hind legs before purchasing it to ensure a fit. - Unique Design: Our dog pants are designed with elastic belly belt, plastic buckle and tail hole, it can provide comfort and freedom for your pet. - Quality Material: These dog sanitary nappies are mainly made of high quality mesh cloth and cotton cloth, soft and breathable, impermeable and leak-proof. - Wide Application: The dog season pants are suitable for excited dog or dog of incontinence of urine, female dogs in heat or monthly bleeding, even for untrained dogs, the inner pads dog diapers has super absorbed ablitity and help them to finish urinating. Product Name: Washable Dog Diapers Material: cotton cloth + mesh cloth Color: Blue, Black Size: see size chart Product usage: Intimately designed for pets during their menstrual period, easy to wear, mesh and breathable fabric, which can be washed repeatedly How to measure detailed size? Step 1: Measure dog at narrowest point around the waist. Step 2: Measure the dog from top of base of tail along back to waistline. Step 3: Measure dog from bottom of base of tail underneath to waistline.