Bell Gage Race Helmet Fusion In-Mold Microshell is the result of an in-molding process which bonds the helmet's Microshell to its EPS foam layer for a sturdier, more solid helmet Internal Reinforcement is a fortified composite skeleton which allows for bigger vents, more advanced styling and lighter weight, while still meeting stringent safety standards 26 channeled vents bring cool air in through the front, allowing it to pass over your head and then flushes warm air out of the rear ports -- so YOU stay cool and your HEAD stays cool Woven with real silver fibers, X-Static Padding is a quick-drying and antimicrobial material which inhibits growth of odor-causing bacteria and fungi while keeping you cooler than standard pads Twin Axis Gear fit system adjusts to the head on 2 axes -- circumferentially as standard fit systems do, but also vertically to better accommodate differences in the up-down position of the occipital lope