Usually, the shell of the helmet is made of high-strength materials, such as metal, engineering plastics, Kevlar fiber, etc., through its deformation to absorb most of the impact; the lining material has the ability to absorb sweat, keep warm, and absorb shock. Military helmets often have the functi

CE EN 1077 and CE EN 1078 are both mandatory European safety standards, but they govern different sports: EN 1077 applies to ski and snowboard helmets, while EN 1078 applies to bicycle, skateboard, and roller skating helmets. The key difference is that EN 1077 requires a penetration resistance test

CE EN 1078 is the mandatory European safety standard for helmets used in cycling, skateboarding, and roller skating. It sets requirements for helmet construction, impact absorption, and retention system strength, and any helmet sold in the EU for these activities must carry a CE mark backed by EN 10

CPSC 1203 is the mandatory federal safety standard that every bicycle helmet sold in the United States must meet, enforced by the U.S. Consumer Product Safety Commission. It requires helmets to pass four core tests — peripheral vision, positional stability, retention system (chin strap) strength, an