Giro Zone MIPS Helmet - ZONE MIPSTHE PERFECT BLEND: The Zone™ MIPS features innovative Hybrid Construction which combines the ding-resistant durability of a Hard Shell upper with the lighter weight of In-Mold Construction. Additional In-Molded sidewalls add protection and style. Zone MIPS is packed with amenities including the In Form 2 Fit System, a quick-fit Vertical Tuning adjustment system for proper helmet positioning, MIPS technology, fully adjustable venting, Fidlock® magnetic buckle closure and a sleek, integrated POV camera mount.MIPS – Multi-Directional Impact Protection SystemHybrid ConstructionDurable Hard Shell Ventilated UpperLightweight In-Mold Lower & SidewallsLow-profile designIn Form 2 Fit SystemVertical Tuning    Thermostat Control Adjustable VentingStack VentilationPOV Camera Mount IncludedFidlock® Magnetic Buckle ClosureXT2® Anti-Odor Protection PaddingCompatible With Aftermarket Giro Audio Systems by Outdoor Tech            Seamless Compatibility with All Giro GogglesS (52-55.5cm)M (55.5-59cm)L (59-62.5cm) Giro Giro Zone MIPS Helmet