The outer shell is made of a hard material, usually polycarbonate, fiberglass or carbon fiber. This shell is designed to absorb impact and protect the wearer's head in the event of a crash.
2. Inner liner
The inner liner is made of a soft, shock-absorbing material, usually expanded polystyrene (EPS) or polyethylene (PE). The liner is designed to absorb impact and cushion the wearer's head.
3. Chin strap
The chin strap is made of a strong, adjustable strap that holds the helmet in place on the wearer's head. The chin strap is essential for preventing the helmet from coming off in a crash.
4. Retention system
The retention system is a series of straps and buckles that hold the helmet in place on the wearer's head. The retention system is adjustable to ensure a snug fit.
5. Ventilation
Helmets have ventilation holes to allow air to circulate and keep the wearer's head cool. Ventilation is important for comfort and safety, as it helps to prevent the helmet from fogging up or becoming too hot.
6. Visor
Some helmets have a visor to protect the wearer's eyes from the sun and wind. Visors can be made of a variety of materials, such as plastic or metal.
7. Padding
Some helmets have additional padding to provide extra comfort and protection. Padding can be made of a variety of materials, such as foam or fabric.
8. Reflective material
Many helmets have reflective material to increase the wearer's visibility at night. Reflective material is usually made of small pieces of metal or plastic that reflect light.
