The AR1 helmet is Answer's best value helmet ever. A dual-density EPS liner helps to absorb both large and small impacts while a highly developed ventilation system consisting of two large intake ports and four large exhaust ports help keep you cool in the hottest conditions.Shell made of injection molded Acrylonitrile Butadiene Styrene (ABS)Sculptured, dual-density, EPS impact absorbing linerRemovable/washable liner is made with moisture wicking fabricsFlexible rubber nose piece helps deflect roostTwo large front air intakes and four rear exhaust vents help keep you coolMeets or exceeds both ECE 22.05 and D.O.T. FMVSS 218 safety standards.Weight: 3.15lbs./1428g (size large).