The Kask Super Plasma Helmet has been engineered for both professional ground and work-at-height applications. It is lightweight, extremely comfortable and features ten air intakes that provide efficient cooling and ventilation. The aluminum grilled air vents on the outer shell prevents entry of debris into the helmet. The Kask Super Plasma outer shell is made of High-Density ABS Plastic and designed to withstand heavy impact from the top or side. *It can take 3-5 days to install SENA communication. Please be aware that your order may take additional time to ship.