PROTEC Original Street Lite Helmet, Navy Blue, Medium Certified helmet with timeless style for bicycling, skateboarding, and a broad range of action sports Revolutionary in-mold shell fused to a durable EPS liner reduces weight by 30% over the timeless PROTEC Original Classic helmet Stiff EPS foam liner; lightweight polycarbonate fused outer shell Easily adjustable nylon webbed straps;durable stainless steel rivets 11 large vent openings to help keep your head cool during intense use; comfortable interior padding