What equipment should always be worn when the climb is 50% or more suitable for crampons?

When the climb is 50% or more suitable for crampons, wearing crampons is essential for safety and stability on icy or snowy terrain. Crampons are specialized traction devices that attach to footwear, enabling better grip on ice and snow, which significantly reduces the risk of slipping and falling in challenging climbing conditions.

In addition to enhancing traction, crampons can help maintain effective balance and control while navigating steep or hazardous slopes. When terrain conditions warrant their use, failing to wear crampons can lead to accidents or serious injuries.

While other equipment such as helmets, harnesses, and proper footwear (like ski boots) may be vital in various climbing scenarios, the presence of significant icy condition makes the use of crampons imperative for ensuring the climber's safety on steep inclines. Thus, selecting crampons as the appropriate equipment in this scenario is correct.