ALPINESTARS Supertech M10 Motorcycle Helmet - Acumen - Limited - MIPS® - Small 8307423-3319-SMShell construction utilizes a highly advanced molding technology with a multi composite combination: 3K Carbon, high density carbon outer layer that improves strength and efficiency of energy dissipation over the shell Uni directional carbon composite layer gives significantly greater radial strength around the shell, preventing compression but allowing controlled deflection for reducing transmitted impact energy The energy absorption performance of

Instruction sheet included for assembly

Polished finish

Reliable Performance: Premium materials and construction ensure consistent performance throughout various riding conditions

Designed using Alpinestars exclusive Drystar® construction Offers 100% waterproofing and great levels of breathability

Standard Shorty Phantom Core Included for Aggressive but Controlled Sound (this new core design eliminates the need for a secondary Speakeasy or "db killer")

helps secure your belongings in the bag

5 inches x 4

Ergonomic design that allows high levels of movement Cell structure ensures maximum comfort and ventilation

The advanced polyester mesh construction and Ax® Laredo synthetic palm deliver exceptional performance for every ride

Versatile Performance: Hybrid design combines motocross protection with street-riding practicality

5" reinforced nylon quick-release buckles keeps contents sealed tight

featuring the innovative Ax® Laredo chassis and premium goatskin palm overlays