Top Density Injection Molded ABS Shell|Twin Density Water-proof EVA Liner|15 Open Vents for Ventilation and Drainage|3 Shell Sizes for 6 other Helmet Sizes|Full Surround Interior Coverage|”Head Lock” rear are compatible system|Removable cupping ear guards with water channels|CE EN 1385 Water Sport Safety Same old|Multi-use Rear Mount Strap on Red Orange Blue helmets best. (Goggles Head Mild Camera and so forth.)
