1.Quality Fabrics: Professional dog recovery kits use high-elastic breathable cotton + polyester, 98% cotton + 2% spandex, fabric breathable, and promote healthy incision healing. It can provide wound protection during outdoor activities to prevent dog tearing sleeves. 2.Size : Sleeve Length / Elbow Dia. (Upper) /Elbow Dia. (Lower) S -17CM (6.7inch) / 13cm (5.1Inch) / 10cm (3.9inch) M -22cm (8.7inch) / 22cm (8.7inch) / 12cm (4.7 inch) L -23cm (9.1inch) / 24cm (9.4inch) ----- 16CM (6.4inch) XL -27cm (10.6inch) /26cm (10.2inch) ------ 18cm (7.08inch) 3.Adjustable Length: Double leg sleeve includes adjustable fasteners and stretching belts. This fastener and stretching belt provide comfortable pressures for dogs, which can reduce fear or pressure, and wear more comfortable. 4.Multi-function: This dog protective front leg cover is suitable for aging dogs, postoperative and skin diseases, suitable for covering ointments, wounds, bandages, etc. Make sure the dog's body is balanced and stable to avoid injury again. 5.Note: When wear, keep the pad behind the knee joint, play a better protection for your dog. Remove the sheath 2-3 times a day to allow the wound and joint to breathe better.