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Outside External shell in two sizes Carbon glass (glass and carbon fiber) shell Inside Four sizes of internal shell, with EPS having four different densities Detachable, washable top quality Dry Comfort fabric inner lining Visor Polycarbonate transparent and scratch proof visor features anti-fogging system Sun visor included Micro opening system in the visor Plus Racing closure with D-ring fastening, with button to secure the strap Ventilation system with wide channels hollowed out directly in the shell

To my opinion it will make the weight higher of the helmet

I like it and if I were buying a trail helmet today it'd be a serious contender again

Bags accomplish this through insulation, leakproof seams, and other features