Bell Volt RL Bike Helmet Features Bell's own Twin Axis Gear (TAG) fit system which adjusts to the head on two axes-circumferentially as standard fit systems do, but also vertically to better accommodate differences in the up/down position of the occipital lobe; for added comfort Bell has co-molded the system arms with soft rubber and positioned them higher to better accommodate eyewear In-mold polycarbonate shell bonds the helmet's microshell to its EPS foam layer to provide a sturdier, more solid helmet; the EPS foam is shot into the thin microshell cap when it's in the mold-hence the name-rather than formed separately and taped on later The X-Static padding is woven with real silver fibers and is a quick-drying material that inhibits growth of odor-causing bacteria and fungi while keeping you cooler than standard comfort pads Cam-lock strap levers make it easy to adjust the straps around your ears; simply open the cam, position comfortably, and close the lever Weight: 9.8 oz/277 g