ALPINESTARS Supertech R10 Helmet - Element - Carbon/Red/White - Large 8200324-1363-L Element 5" / 90mm Overall Depth

5" / 90mm Overall Depth 2

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heavy-duty nylon zippers

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Replacement Diaphragm for PRO-TW3L

ALPINESTARS Supertech R10 Helmet - Element - Carbon/Red/White - Large 8200324-1363-L Element 5" / 90mm Overall DepthOuter 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, perfectly