Giro Fathom Helmet

If you ride everything and ride fast, you need the same cool comfort and performance whether you’re on the open road, or your favorite singletrack. The Fathom™ helmet is a twin to our legendary Atmos™.

A breakthrough helmet design that offers amazing ventilation thanks to a clever internal reinforcement structure. The compact design is a style leader and is matched with a removable adjustable visor and the two-way adjustable Roc Loc® 5 fit system. Offering the performance and versatility you need.

- Small = 51-55cm
- Medium = 55-59cm
- Large = 59-63cm