ALPINESTARS Supertech R10 Helmet - Team - Matte Black/Carbon Red Fluo/Blue - 2XL 8200224-1383-XXL sound dampening Removable flannel liner is thermal

Removable flannel liner is thermal insulated offering versatile weather protection in colder climates

5KHz Recommended HI Pass Crossover 78 Hz Pair or single Single MOTOR   Voice Coil Diameter 2

warm and ready for any adventure

4 X 8" Speakers

ALPINESTARS Supertech R10 Helmet - Team - Matte Black/Carbon Red Fluo/Blue - 2XL 8200224-1383-XXL sound dampening Removable flannel liner is thermalOuter 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