Designed to protect your brain from rotational (the most common) impacts, the lightweight Aerocore construction of this helmet provides an increased level of protection at a minimal weight. The adjustable vents allow use throughout the seasons, and the sweat wicking X-Static lining keeps you dry and prevents odor.??. . . MIPS polycarbonate shell. EPS impact foam. Aerocore construction with Koroyd. AirEvac 2 ventilation with Regulator adjustable vents. X-Static moisture-wicking and anti-odor lining. Adjustable Dial Fit System (DFS2). Snapfit SL2 ear pads. 715757489526 20019800015 H16-CAMBMIPS