Designed for comfort, performance and coverage, all without draining your wallet. The Sector line of helmets feature a dual density EPS (Expanded Polystyrene) liner, injection molded Polycarbonate/ABS (Acrylonitrile Butadiene Styrene) shell, adjustable visor and integrated ventilation for class leading performance. Wherever your ride takes you, the Sector helmet is up to the task.