Giro Tor Spherical Helmet Features: Mips® Spherical Hybrid Construction Durable Hard Shell Ventilated Upper Lightweight In-Mold Lower And Sidewalls Thermostat Control™ Adjustable Venting - Allows Custom-Tuning Of Airflow Instantly With A Simple, Low-Profile Control Button On The Outside Of The Helmet In Form™ 2 Fit System - Lighter And Lower-Profile Than The Original, Making It Even Easier To Dial In A Custom Fit In Seconds, Even With Gloves On. On-The-Fly Vertical Tuning - Accommodates Different Goggles And Head Shapes For A Custom Fit Free Of Gaper Gap. Certification Ce En1077 Fidlock® Magnetic Buckle Closure Seamless Compatibility With All Giro Goggles Mips® Equipped   Tor Spherical Helmet