The Phase is compact, cool, and durable enough to handle even the most daunting climbs and rock-strewn ribbons of singletrack, and it is super value for riders who want high-profile performance in a low-profile helmet

The Features of the Giro Phase 2009 - Mountain bike helmet are:

• 27 Wind Tunnel active vents with internal exhaust channels that thrust fresh, cool air over and around the riders head while forcing heat and stale air out at the same time
  
  
• The In-mould construction process fuses the outer shell with the impact-absorbing EPS liner during the moulding process, and reinforces areas around vents and ribs, creating an exoskeleton
  
  
• This allows the helmet design to be lighter, more durable, and better ventilated than traditional designs
  
  
• Adjustable AcuDial 2 custom fit design features snap-in anchors for a reliable and adjustable fit
  
  
• Coolmax pads add comfort and wick away any sweat, and these can be removed for washing if necessary
  
  
• Removable Snap-fit visor
  
  
• Meets CE EN1078 certification