If you ride everything and need cool comfort and performance – whether you’re on the open road or your favorite singletrack – the Fathom™ is a great choice. This helmet is a twin to our legendary Atmos™ II, a breakthrough helmet with a clever internal reinforcement structure that allows great ventilation without compromising the helmet’s integrity. The key difference is that the Fathom includes a sleek, removable visor. With the added comfort and security of the two-way adjustable Roc Loc® 5 fit system, the Fathom is equally comfortable on rough trails or on smooth pavement.
Removable Visor, Roll Cage™ Internal Reinforcement
In-Mold Polycarbonate Shell with EPS Liner, Thermoformed SL Reinforcement
Roc Loc® 5
23 Wind Tunnel™ vents, internal channeling
WIND TUNNEL™ VENTILATION
Giro helmets are developed utilizing our proprietary Wind Tunnel™ ventilation system. This elaborate design combines active vents
in the helmet’s shell with exhaust channels inside the helmet that thrust fresh, cool air over and around the rider’s head while forcing
heat and stale air out. It’s the most effective cooling system available, and a difference you can feel every time you ride.
SUPER FIT™ ENGINEERING
Our proprietary Super Fit™ sizing system is based on “human scale factors” data and over 25 years of handcrafting helmets. By creating helmet molds in up to 4 adult sizes to match the human body’s form, our Super Fit™ sizes comfortably and securely fit riders, and feel like they are custom made just for you.
ROLL CAGE™ 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.
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 lighter than comparable systems too, making it the ultimate in skull-hugging luxury.
In-Mold Construction fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mold helmets lighter and cooler than traditional helmets.