1、Made of good quality material, soft, comfortable, wear-resistant and durable. 2、 It can effectively improve blood circulation, strong support for muscle tissue. 3、Lightweight, portable, easy to carry and wear. 4、4 different size to choose, suitable for most people. 5、 Available for knee support in outdoor sports, such as basketball, football, hiking, etc. Features: 1. Made of good quality material, soft, comfortable, wear-resistant and durable. 2. It can effectively improve blood circulation, strong support for muscle tissue. 3. Lightweight, portable, easy to carry and wear. 4. 4 different size to choose, suitable for most people. 5. Available for knee support in outdoor sports, such as basketball, football, hiking, etc. Specifications: Material: Nylon+Latex+spandex Color: Black Optional Size: S, M, L, XL Size Length(cm/in) Upper width(cm/in) Lower width(cm/in) Suitable leg  circumference(cm/in) S 27/10.6 15/5.9 13/5.1 30-34/11.8-13.4 M 27/10.6 16/6.3 14/5.5 35-41/13.8-16.1 L 27/10.6 17/6.7 15/5.9 42-47/16.5-18.5 XL 27/10.6 18/7.1 16/6.3 48-55/18.9-21.7 Packing List: 1 * Knee Sleeve Brace