Mavic aksium helmetmavics aksium helmet is a great road helmet thats light comfortable and tough enough to form part of your kit for years to come like all mavic helmets the aksium is super comfy thanks to the aksium fit pad and ergo hold retention system you can adjust the height of the straps and the hold on your head with just one hand so its simple to tweak on the move and with 23 vents its lightweight and airy too the aksium also features a removable visor for sunny days so this he