How is my helmet made and how does it work?
How Are Helmets Made?
Most helmets are made with two basic components: a tough outer shell and an impact-absorbing liner. With In-Mold helmets the shell and the liner are fused together with pressure and steam in a mold. With injection-molded helmets the shell and liner are formed separately then bonded together with adhesives. Regardless of how a helmet is made, each part of the helmet contributes to the overall effectiveness of the helmet.
The Outer Shell - Some models use a lightweight In-molded shell made of polycarbonate plastic; some use a hand-made fiberglass or carbon fiber shell; some use a combination of materials. But they all have the same basic mission:
- Help distribute impact energy.
- Help protect against penetration by sharp objects.
- Help protect the liner from abrasions and knocks during day-to-day use.
The Interior Liner
- Help prevent or reduce brain injury by absorbing the energy of an impact through its own compression or destruction.
The Straps and Fit System
- Fit the helmet comfortably and securely to the wearer's head.
- Prevent the helmet from coming off the wearer's head during a crash.
How Do Helmets Work?
During impact, the helmet's EPS foam liner compresses, like an airbag, to absorb energy so that the brain doesn't move around the inside of the skull with as much force. By absorbing this energy, a helmet significantly reduces the likelihood of the most common brain injuries, such as concussions and hemorrhaging.
-Gear Guide Courtesy of Giro