What is a "crampon"? How are they useful in mountaineering?

What is a "crampon"? How are they useful in mountaineering?

• A. Crampons are devices attached to boots, a grid of 2-inch spikes used to secure foot in the ice; they prevent slipping.
• B. Crampons are warming socks used to prevent frostbite.
• C. Crampons are hats worn to protect head from sun.
• D. Crampons are ropes used for belaying.

Answer: (A)

Crampons are devices attached to boots that provide traction on ice and hard snow. They have a frame with multiple spikes, often about two inches long, arranged in a grid that bites into the surface to keep your foot from slipping. In mountaineering, this means you can walk on glaciers, ascend icy slopes, and kick footholds in hard-packed snow with much greater stability. They also enable safer use of an ice axe for self-arrest if a fall occurs. Crampons come as strap-on models or integrated bindings, depending on the boots and terrain. Other items like warming socks, hats, or ropes don’t offer the same ice traction and safety on icy terrain.

Crampons are devices attached to boots that provide traction on ice and hard snow. They have a frame with multiple spikes, often about two inches long, arranged in a grid that bites into the surface to keep your foot from slipping. In mountaineering, this means you can walk on glaciers, ascend icy slopes, and kick footholds in hard-packed snow with much greater stability. They also enable safer use of an ice axe for self-arrest if a fall occurs. Crampons come as strap-on models or integrated bindings, depending on the boots and terrain. Other items like warming socks, hats, or ropes don’t offer the same ice traction and safety on icy terrain.