Comfortable moisture-wicking and breathable fabric. Graduated compression support leg power and vertical jump power. Features: Comfortable moisture-wicking and breathable fabric. Extra calf shin support enhanced warm up. Reduce muscle fatigue and injury in calf. Improved blood circulation and muscle recovery. Graduated compression support leg power and vertical jump power. Specifications: Material: Spandex Color: Black / Blue / Green / Red / White(Optional) Size Chart: <table border="1" height="103" style="border-collapse: collapse;" width="358"> <colgroup> <col /> <col /> <col /> <col /></colgroup> <tbody> Size Length Width Calf Circumference S 25.5cm/10in 9.7cm/3.8in 28-33cm/11.0-12.9in M 26.8cm/10.5in 11cm/4.3in 33-41cm/12.9-16.1in L 27.8cm/10.9in 12cm/4.7in 36-45cm/14.1-17.7in </tbody> </table> Package Weight: 43-54g / 1.5-1.9oz Package Size: 10 * 6 * 2cm / 3.9 * 2.3 * 0.7in Package List: 1 * Pair of Calf Brace