What Our Gearhead(R) Experts Are Saying: "I've put the Tenet through everything: pow laps, storm days, and spring hikes. The hybrid shell keeps it light without sacrificing durability, and the fleece lining stays fresh even after long days. It's one of the most comfortable lids I've worn."Long days and stacked vertical call for a helmet that keeps up with every turn, hike, and storm cycle. The Giro Tenet Mips Helmet is built for it all. With a hybrid shell construction, it strikes the perfect balance between lightweight mobility and rugged durability for high-output riders and everyday crushers alike. Under the shell, Mips technology helps absorb rotational forces during certain impacts, offering an extra layer of confidence whether we're ducking ropes or pointing it back to the lift. The low-profile In Form 2 Fit System gives us an instant custom fit, and Thermostat Control vents let us stay cool or lock in warmth with the flick of a glove-friendly dial. Add a breathable, anti-odor Ionic+ fleece liner, and we've got comfort that keeps up all season long.