Description: Cycling arm warmer sleeves, made of polyester and spandex, quick dry and breathable. The sleeves has good elasticity, UV protection, breathability and sweat absoption properties. With non-slip gel strip to make a great fit and prevent falling off. With reflective function, when you are running or cycling in . Will keep you safe in . Great for baseball, soccer, softball, basketball, football, running, fitness, workout, exercise, cycling, riding, tennis, fishing, driving, climbing, golf and other outdoor sports. Specification: Material:Polyester,Spandex Color: Black,White,Green Size:M,L,XL,XXL Size Chart: Size M Length: Approx. 39cm/15.4inch;Upper Diameter: Approx. 23cm/9.1inch;Lower Diameter: Approx. 15cm/5.9inch Size L Length: Approx. 40cm/15.7inch;Upper Diameter: Approx. 25cm/9.8inch;Lower Diameter: Approx. 17cm/6.7inch Size XL Length: Approx. 41cm/16.1inch;Upper Diameter: Approx. 27cm/10.6inch;Lower Diameter: Approx. 19cm/7.5inch Size XXL Length: Approx. 43cm/16.9inch;Upper Diameter: Approx. 30cm/11.8inch;Lower Diameter: Approx.20cm/7.9inch Package Includes: 1 Piece Arm Sleeve Note: Please allow slightly difference due to manual measurement. Color may be slightly different since different monitor. Thanks!