Giro Fathom Cycling Helmet

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Giro Fathom Cycling Helmet

Availability: In stock

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.

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Only 6 left

Product Name Qty
Giro Fathom Cycling Helmet-Black / Highlight Yellow-Small 1
Giro Fathom Cycling Helmet-Matte Flame / Titanium-Small 1
Giro Fathom Cycling Helmet-Matte Flame / Titanium-Medium 1
Giro Fathom Cycling Helmet-Matte Flame / Titanium-Large 3


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