High Resistence Thermoplastic Resin External Shell 1 Shell Size 2 EPS Sizes variable density J. 1cm above the ears to get the most accurate measurement for the helmet. Working to understand the demands of the rider and crafting products along the way to meet such demands is of the upmost importance to Just1.The company was started with the goal of not just making helmets but making a better version of any of the helmets on the market. The company also already has several world titles to its name throughout various disciplines including both the 2016 MXGP and 2015 MX2 FIM Motocross World title with Tim Gajser and the 2013 MX3 title with Klemen Gercar. This item is in the category "eBay Motors\Parts & Accessories\Apparel, Protective Gear & Merchandise\Helmets & Accessories\Motorcycle & Powersport Helmets". The seller is "bestbuy-auto" and is located in this country: US. This item can be shipped worldwide.