Ace Wake w/Multi-use rear mount clip & whistle buckle Matte Cement Whether youre wakeboarding, kayaking, or kite surfing, the Ace Wake water helmet is loaded with features combining style, comfort, and adjust ability. Best known for its 15 open vent holes for optimum ventilation and drainage, removable ear guards, and our Headlock fit system. High Density Injection Molded ABS Shell Dual Density Waterproof EVA Liner 15 Open Vents for Ventilation and Drainage 3 Shell Sizes for 6 different Helmet Sizes Full Surround Interior Protection "Head Lock" rear fit system Removable cupping ear guards with water channels CE EN 1385 Water Sport Safety Standard Multi-use Rear Mount Strap on Red, Orange, Blue helmets only. (Goggles, Head Light, Camera etc.)