hjc c91 modular helmet Kaon MC-5 Small Size:40 Inch The drop The evolution of the Poly-liner

hjc c91 modular helmet Kaon MC-5 Small Size:40 Inch The drop The evolution of the Poly-liner

The evolution of the football helmet, a critical safety device, has accelerated in recent years, driven by concerns over the long-term effects of concussions, new concepts and materials, and data-driven test protocols.

Whether you're riding a conventional bike or an e-bike, the evidence is clear: helmet use remains one of the most effective ways to prevent serious head injuries and improve your chances of walking away from a crash

Poly-liner

Size:40 Inch

Features: DOT FMVSS 218 Modular, flip-up style helmet Recessed EPS speaker pockets Removable/Washable anti-bacterial interior Weight 1750g +/- 50g (Size M): ECE: 1715g +/- 50g (Size M) Lightweight fiberglass composite shell construction Panovision shield with Class 1 optics

The drop