This unique construction features the best of both In-Mold and Hard-Shell constructions. The primary In-Mold construction makes the helmet incredibly light, while the secondary Hard-Shell upper allows for increased durability Compression formed, precise fit liner with removable ear pad and neck roll for a convertible customized fit. The 360° K2Dialed™ Fit System is an evolution of the K2Dialed™ Fit System, delivering unparalleled comfort around your entire head. An intricate web design results in 360 degrees of even pressure distribution for a secure and snug fit that you customize with the twist of a dial. User-regulated Active Matrix venting combined with integrated Passive Channel venting. Certified by North American bicycle helmet safety standard and European bicycle and skateboard helmet safety standard. K2 Virtue Mips Helmet Womens