Its shame is especially for climbers. The helmet is the most important piece in safety equipment. Its basic function is to protect your head from: 1. Fallen rocks: especially when climbing in a group or in crowded areas. 2. Creating the wall: while falling or swinging, the head can be covered with rocks with strong concussion. 3. Friction of ropes: in some cases of fall, the head may touch the rope at a high speed.