Color: Black Green Material: Spandex 25%, Polyester 33%, Nylon 42% Size: M (36-40 cm), L (40-44 cm), XL (44-48 cm) Weight:130g Application: prevention or rehabilitation after injury, all kinds of fitness exercise. Features: 1.Full-way elasticity provides more fitting and more comfortable support against the knee, it keeps knee warm properly and relieves chronic arthritis pain. 2.High elasticity provides more fitting and more comfortable support for the knee. 3.It keeps knee warm and relieves chronic arthritis pain. 4.Suitable for a variety of fitness and sports.