Alpinestars S-R10 Motorcycle Helmet Colour:White Or maybe it's the frame-integrated

Or maybe it's the frame-integrated fan that provides reliable fog prevention

grease seal

No Liner For Optimal Comfort And Mobility

Run Time: 26 hours on High

Alpinestars S-R10 Motorcycle Helmet Colour:White Or maybe it's the frame-integratedFEATURES Outer Shell Utilizes molding technology with a multi composite combination featuring a 3K high density carbon outer layer, a uni directional carbon composite layer, an aramid fiber layer, and a fiberglass one 3K high density carbon outer layer provides strength and efficiency of energy dissipation over the shell Layered composite combination created by bonding everything together with an epoxy resin already applied on the pre preg fiber,