The KASK Super Plasma Hi-Viz Helmet has been engineered for both professional ground and work-at-height applications. The aluminum grilled air vents on the outer shell prevent debris from entering into the helmet. The outer shell is made of High-Density ABS Plastic and designed to withstand significant impact from the top or side. The KASK Super Plasma Hi-Viz Helmet is lightweight, comfortable and features ten air intakes that provide efficient cooling and ventilation