FEATURES: Lightweight and comfortable design Polartec(R) power grid padding with bi-component knit construction Plus Max fleece for comfort and moisture wicking Features MIPS(R) (Multi-Directional Impact Protection System) Technology for exceptional protection MIPS(R) Technology includes an interior EPS foam liner, a Low Friction liner and an elastomeric attachment system that sits between Spherical Ball-and-Socket design redirects impact forces In Form(TM) 2 Fit System to create custom fit easily Stack Vent technology prevents fogging Thermostat control adjustable venting for customizable airflow with control button Fidlock(R) magnetic buckle closure Seamless compatibility with Giro goggles Certification: CE EN1077 SIZE: S: 52 - 55.5 cm. M: 55.5 - 59 cm.