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.