The Montaro MIPS is the result of years of building top helmets for mountain bikers. It's designed to cover the needs of trail, all mountain and enduro riders. Featuring additional coverage, a compact shape and the secure yet slimline Roc Loc Air fitting system. Anti-Microbial and hydophilic pads that can suck up to 10 times their weight in sweat wiil help to keep you dry too. 16 channeled cooling vents teamed up with the very minimalist fitting system will keep your melon cool too. Like to run goggles? This is the helmet for you. Strap grippers at the back keep your goggles in place, while the POV visor is specifically designed to be able to be pushed up enough to alloy your goggles to sit underneath. Full camera or light mount integration as standard too with a very smart break away interface. Sizing Chart Measured around the head just above the ears. Small - 51 - 55cm Medium - 55 - 59cm Large - 59 - 63cm