evo.com | Giro Bike Helmets > If your weekend takes you from rowdy forest singletrack to monster dirt jumps hidden in an undisclosed location, snag the Giro Tyrant MIPS Bike Helmet for a do-it-all lid that lays the style on thick. Offering more coverage than a half shell without the weight and bulk of a full face, the Tyrant comes with MIPS(R) Spherical technology - two foam layers of differing density that work like a ball and socket to redirect impact energy in a crash. Sign, seal, and send with the Giro Tyrant MIPS Bike Helmet. Polycarbonate Shell with EPS / EPP Liner Hardshell with In-Mold Hardbody(TM) Lower Wrap The two-piece shell combines a tough outer hard shell with a polycarbonate lower shell permanently fused to the liner for durability without excess weight. Roc Loc(R) Air DH Adjustable fit system enhances the helmet's comfort, stability, and interior ventilation while reducing the chances of accidental adjustment. Complies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older 14 Vents | Giro Tyrant MIPS Bike Helmet 2025 - Large in Black