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 liner. Removable / washable liner is made with moisture-wicking fabrics. Flexible rubber nose piece helps deflect roost. Two large front air intakes and four rear exhaust vents help keep you cool. Meets or exceeds both ECE 22.05 and D.O.T. FMVSS 218 safety standards. Weight: 3.15 pounds / 1428 grams (size large).