The Asics Blocker Women's Volleyball Jersey is a new, semi-fitted jersey for 2010 that features advanced moisture management capabilities that allow volleyball players to compete at the highest level. The Blocker jersey keeps athletes cool and dry, thanks to Asics Hydrology material. Hydrology is a lightweight fabric that helps wick moisture away from the body to the outer layer of the jersey. This provides a cool, dry environment that also moves with the body for unhindered movement and wide range of motion. The Women's Asics Blocker Jersey also features flat seam construction inside the jersey, for a comfortable fit that lets you concentrate on the game. No more annoying seams. Special mesh ventilation zones strategically placed throughout the jersey help dissipate heat and bring in fresh, cool air to keep a comfortable environment that allows the body's cooling process to take place. Features 90% nylon and 10% spandex.