With class-leading Spherical Technology, optimized ventilation, and a lightweight fit, the Super Air is our most advanced trail helmet.The Super Air is the first trail helmet to offer Spherical Technology, making it our most advanced trail helmet. Period. Spherical Technology's Ball-and-Socket design, powered by MIPS®, helps redirect impact forces away from the brain by allowing the outer liner to rotate around the inner liner during a crash.This combination of outstanding safety, optimized ventilation, and extreme lightness brings epic achievements within reachon any trail, in any terrain. When you're ready to step up, upgrade by adding the optional chin bar. See you on the trail! Key Features: Mips: Mips (multi-directional impact protection system) - a leading slip plane technology designed to reduce rotational forces that can result from certain impacts.Construction: Fusion in-mold polycarbonate shell - a process pioneered by bell bonds the helmet's outer shell to the eps foam