■ Weight,Sizes & Colors340gSize: 56-62cm5 ranging colors■ ConstructionOuter Shell Construction:In-mold polycarbonate shell with EPS linerInner Shell:Thermoformed reinforcement shock absorbing polystyrene■ Fit SystemLightweight fit system with an easy-to-turn dial for adjustments■ Ventilation15 Wind Tunnel vents with internal channeling■ ComfortRemovable and washable inner padding in Coolmax material- COOLMAX internal pads(cushioning comfort pad) are usedin larger surface in contact with the head for increased comfort. Detachable for hand wash and anti-allergenic. ComfortLiner and Chin Pading keeps a good fit■ Be SeenNo reflective rear sticker■ Compatibility No■ Certification CE EN 1078■ Accessories