What additional feature can improve the effectiveness of a helmet during a fall?

Padding and shock-absorbing liners are crucial components of a helmet that enhance its effectiveness during a fall. These features are designed to absorb and dissipate the energy generated upon impact, significantly reducing the risk of head injuries. The materials used in padding and liners, such as expanded polystyrene or similar foams, help to cushion the skull and minimize the force that reaches the brain during an accident.

The effectiveness of a helmet is fundamentally linked to its ability to protect the head from sudden impacts. The presence of additional padding can also improve the overall fit of the helmet, ensuring that it remains securely in place, which is vital for maintaining protection. Thus, having adequate padding and shock-absorbing properties makes a helmet significantly safer, particularly in scenarios involving falls or collisions.