Giro's Phase is a great choice for trail-hungry cyclists. It boasts Giro's In-Mold construction for excellent durability and 27 vents with Giro's Wind Tunnel technology that keeps the air flowing so you stay comfy all ride long. And, you'll love the great fit and feel of Giro's Acu Dial 2 fit system and the removable visor that protects you from glare and branches.
The Phase is compact, cool and durable enough to handle even the most daunting climbs and rock-strewn ribbons of singletrack. And it's a super value for riders who want high-profile performance in a low-profile helmet.
The Roc Loc® 5 is an improved retention system with a micro-adjusting dial which is easy to use: a simple twist of the dial opens or tightens the retention system of the helmet. It also features ergonomic arms to accommodate Giro eyewear, and a 15 mm vertical bracket which you can adjust without removing your helmet.
The Wind Tunnel™ 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.
In-Mold™ construction fuses a tough polycarbonate outer shell with the helmet's impact-absorbing foam liner. The fusion process allows for better ventilation systems, making in-mold helmets lighter and cooler than traditional helmets.
A great helmet is so comfortable that once it's on, it virtually disappears. Giro's proprietary three-size Super Fit™ Engineering Fit system is based on "human scale factors" data and over 20 years of crafting helmets for the best bike riders in the world. The result is pure Skull Hugging Luxury™, a helmet that fits 98% of the world's population, yet looks (and fits) like it was custom made just for you.
ventilation ports: 24