Oakley VELO MACH Helmet Accessory size:M 4 portal bosses + 2

4 portal bosses + 2 bottles

If you like something with a little more contrast in taste

ensuring that no power is wasted

a dual dial closure system

Oakley VELO MACH Helmet Accessory size:M 4 portal bosses + 2The Oakley Velo Mach Road Helmet delivers uncompromising race ready performance, designed to extract as many aerodynamic gains as possible. The faster you go, the greater the efficiencies. The slippery aerodynamic shell has been engineered to reduce drag while still affording excellent protection, just what you need should you get tangled up in a crash in a high speed bunch. Large vents to the front draw air inside and channelled through to rear