Giro Phase
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.

Fit System
Acu Dial 2

Construction
In mold EPS liner, polycarbonate shell

Ventilation: 27 Vents

Features
• Snap Fit 2 visor

Super Fit Sizes
Small: 51-55cm • (20-21.75)
Medium: 55-59cm • (21.75• 23.25)
Large: 59-63cm • (23.25 • 24.75)