Ready to ride ? What do you want to do today? Want to hit some great trails and make videos of it with your mates?The Oasiz is ready to do it allThe top 'wing' can be interchanged with a GoPro mount which is available seperaley, allowing you to use your GoPro securely on your helmetRollsys is Lazer's very own award winning fit system: simply control the size and the comfort by turning the wheel on the top of the helmetThe Rollsys system permits an accurate and progressive peripheral sizing adjustmentThe fit of the helmet will be symmetrically tightened up without any pressure points on the head, with a simple one-handed adjustmentBy taking away the retention system at the back the Rollsys system is also the perfect solution for people with a ponytailA small light can also be purchased separately to add you your Rollsys to increase your visibilityIn-mould (3-piece) construction21 cooling ventsWeight for a size medium 285 gSize: Medium 52-58 cm, Large 59-61 cm