FEATURES: Best-in-class ventilation Deep coverage for ultimate comfort Ventilation system equipped with 19 Wind Tunnel(TM) vents and with internal channeling Adjustable moto-style screw-in visor Utilizes a ball-and-chain socket design Shatter resistant AURA reinforcing arch Integrated google gripper helps keep googles in place while riding Meets at US EPSC Safety Standards for bicycle helmets for riders 5 and over TECHNOLOGY: Equipped with MIPS(R), the Multi-Directional Impact Protection System, so you not only stay cool but stay safe with extra protection and durability Integrated MIPS(R) reduces rotational forces while enhancing comfort and fit Spherical(TM) Technology's Ball and socket design creates a barrier of protection that redirects possible impact forces away from your brain, keeping you safe no matter where you journey to Roc Loc(R) 5 Fit system features a simple and effective rear thumb dial for a comfortable and secure fit Progressive Layering(TM) dual-density foam addresses high and low speed impacts for all-inclusive energy management XT2(R) Anti-microbial padding provides permanent, natural anti-odor protection to keep your helmet smelling and feeling fresh SPECS: Circumference: S: 20.1 in. - 21.7 in. / 51 cm - 55 cm M: 21.7 in. - 23.2 in. / 55 cm - 59 cm L: 23.25 in. - 24.75 in. / 59 cm - 63 cm Weight: 346 g