Legendary performance, style and comfort. The Atmos was the first helmet to utilize In-Mold composite Reinforcement, a breakthrough in helmet architecture that allowed greater ventilation without compromising a helmet's integrity. The compact shape offers matchless style, and features the sure feel of a Roc Loc 5 system that cradles your head comfortably and securely. It's no wonder this helmet continues to be a favorite with road, XC and cyclocross riders worldwide.
Roll Cage Internal Reinforcement - Roll Cage is a light-yet-tough web of reinforcement invisibly molded inside a helmet’s EPS foam liner. It helps the helmet to hold together under impact, and provides an extra measure of strength and integrity that you’ll never notice… unless you need it.
Featherweight Webbing With Slimline Buckle
In-Mold Polycarbonate Shell with EPS Liner
In-Mold Composite Reinforcement - The In-Mold construction process permanently fuses a light-yet-durable outer shell with the helmet's impact-absorbing EPS foam liner, enhancing the strength of both parts. This fusion process reinforces areas around vents and ribs, creating a one-piece exoskeleton that allows the helmet to be lighter, more durable, and better ventilated than helmets with shells that are fastened or adhered to the liner.
Roc Loc 5 Fit System - The industry benchmark in comfort, stability adjustability and weight savings. In addition to enhancing the fit and comfort of helmets, Roc Loc 5 allows you to easily custom tune the fit tension and the fore-aft tilt of the helmet in seconds using a single hand, and it's almost 40% lighter than comparable systems too, making it the ultimate in skull-hugging luxury.
26 Wind Tunnel Vents with Internal Channeling
S - 20"-21.75" / 51-55cm, M - 21.75"-23.25" / 55-59cm, L - 23.25"-24.75" / 59-63cm
WIND TUNNEL™ VENTILATION Giro helmets are developed utilizing our proprietary Wind Tunnel™ ventilation system, which combines active vents with internal exhaust channels that thrust cool, fresh air over and around the riders head-while forcing heat and stale air out. This significant increase in air channeling.