Giro is introducing the most technologically advanced cycling helmet ever created. Born from three years of development, it is called Ionos.

Bigger Vents are Better; the ventilation system is so effective that riders wearing Ionos will be appreciable cooler than riders who choose to not wear a helmet at all.

Tour Tested; at the Tour de France you saw Discovery Channel Pro Cycling Team, Rabobank Team, and the Phonak Team putting in the miles needed to help fine-tune the Ionos Prototypes.

Light and Tough; Ionos features in-mould construction with a sleek, four piece shell.

Fit Like a Glove. Giro Roc Loc 4 is the industry point of reference for adjustability, durability and comfort.