A crampon is a traction device used to improve mobility on snow and ice. It generally consists of a series of spikes in a metal frame. These frames are attached to boots using various systems, such as straps, step in, etc.
Crampons can be used for ice climbing or winter walking on snow and ice.
They generally come in 3 configurations; C1, C2 or C3.
C1 is a relatively flexible walking crampon.
C2 is a versatile crampon for both walking and mountaineering.
C3 is a technical mountaineering crampon.