Giro Strata MIPS Helmet - Women's: LIGHTWEIGHT & LUXURIOUS strata mips The Strata(TM) MIPS may get its good looks and low-profile styling from the Stellar, but on the inside it features Hybrid Construction blending a durable Hard Shell ventilated upper with lightweight In-Mold lower and sidewalls. The Strata also offers the In Form 2 Fit System with custom quick-fit Vertical Tuning and the protection of MIPS - the Multi-Directional Impact Protection System. Strata extras include adjustable enhanced venting and an integrated POV camera mount all in a durable, lightweight package. CONSTRUCTION: MIPS - Multi-Directional Impact Protection System Hybrid construction Durable hard shell ventilated upper Lightweight In-Mold lower & sidewalls Low-profile design FIT SYSTEM: In Form 2 Fit System Vertical Tuning VENTILATION: Thermostat Control adjustable venting Stack Ventilation FEATURES: Women's styling and details POV camera mount included FidlockA(R) magnetic buckle closure Compatible with aftermarket Giro audio systems by Outdoor Tech Seamless Compatibility with all Giro goggles SIZES: S 52 - 55.5cm M 55.5 - 59cm