This layer essentially acts as a slip plane to mimic the brain’s own low friction cerebrospinal fluid, which is the body’s natural defense against oblique impacts. The SM3 Youth weighs 1060g. ModelSupertech M3.
Alpinestars 2026 SM3 Wurx Youth Motocross Helmet Black Yellow Blue Red Gloss
Alpinestars 2026 SM3 Radium Motocross Helmet Black Red Flo White
Alpinestars 2026 SM3 Force Motocross Helmet Cyan Glossy
Alpinestars 2026 SM3 Force Motocross Helmet White Glossy
Alpinestars Solid SM3 Boys ECE06 Motorcycle Helmet - Matte Black 8302425110
Alpinestars 2026 SM3 Heat Motocross Helmet Silver Blue Black Matt
