This helmet is a twin to Giro's 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 fit system
- 23 Wind Tunnel™ vents, internal channeling