Giro adds the new Rift to its oustanding line of mountain bike helmets in 2008. The Rift is an eacy choice for riders who want cool comfort and rugged looks without breaking the bank. And the performance features that rival many premium helmets, its a clear winner. The Rift includes Acu Dial universal fit for adults, and In Mold Technology. This helmet comes in six different color combinations - White/Titanium, Black/Titanium, Blue/White, Red/Black, Titanium/Carbon and Silver/Mint. Sizes: Universal Fit - 21.25 to 24 inches / 54 to 61cm