Available in 6 Classic Super Fit sizes: XS(52-53.5cm), S(53.5-55.5cm), M(55.5-57cm), L(57-59cm), XL(59-60.5cm), XXL(60.5-62.5cm) * Hard Shell Construction * 9 Super Cool Vents with ARC System * Compliance: CE EN1077 * Slalom Chinbar Compatible