With a new head form that provides a better fit for more riders, the redesigned Roost features trusted Mips protection, a precise three-position rear-height adjustable fit system, increased ventilation, and modern styling. Certified five-star by the world-renowned Virginia Tech Helmet Safety Lab, Roost is a lightweight go-to helmet for charging the toughest trails.Key Features:An all-new, rounder head form offers a more universal fitMips rotational impact protection systemIn-molded upper and lower PC shells for an optimal protective structure at a light weightOptimized low and high EPS densityFive-star safety rating from the Virginia Tech Helmet Safety LabEasily accessible dual-arm, snap-on, threeposition rear height adjustment12 oversized vents for maximum head-cooling airflowSupple and lightweight strap systemThree-position adjustable visorSpecification:Sizes: S (51-55cm) M (55-59cm) L (59-63cm)Weight: 385g (Size M)