What characteristic is important for a high-angle rescue helmet?

The importance of a three-point suspension system in a high-angle rescue helmet cannot be overstated. This design enhances the helmet's stability and fit, ensuring that it remains securely in place during the rigorous movements and activities associated with technical rescues. A well-designed suspension system helps distribute the weight of the helmet evenly across the wearer’s head, which can significantly reduce fatigue over extended periods of use. Additionally, it allows for quick adjustments, accommodating various head sizes, and improving comfort and protection.

In high-angle rescue scenarios, where personnel often experience rapid changes in position and potential impacts during operations, the retention of the helmet is crucial for safety. A three-point suspension system minimizes the risk of the helmet slipping off or shifting, thereby providing the necessary protection against falling debris and impacts.

While characteristics like lightweight design, adjustable fit, and bright color are certainly beneficial for various reasons—such as comfort, visibility, and ease of wear—they do not specifically address the vital stability and safety concerns that a three-point suspension provides in high-angle environments. This makes the three-point suspension feature essential for ensuring that the helmet functions correctly under the demanding conditions of rescue operations.