Featuring Race Lock for a secure fit and including Mips rotational impact protection, the Skull Dura X Mips gives trusted race protection. Fully certified for racing, and featuring the innovative Race Lock turnwheel adjuster for a completely secure fit at very high speeds, the Skull Dura X Mips gives comfort that keeps your focus on racing. Shaped for an even fit over the whole head, the helmet gives the kind of comfort that lets you forget it's there, so your focus stays firmly on racing. Extra protection comes in the form of a multi-impact EPP liner. Mips provides increased rotational impact protection. The FIS RH 2013 certified helmet features ear pads that can be easily removed after a fall, making it easier to remove the helmet safely. Ear chambers support improved balance, and the helmet is fully compatible with the Maxilla Breakaway Chin Guard.