Our anti-slip crampon shoe covers contain rubber. They can be used with various sports shoes, hiking boots, and alpine boots. They are suitable for activities such as mountaineering and trekking, and can be used on ice, grass, and other surfaces. The method of use is very simple: simply turn the spikes outward, tie the front end of the crampon to the tip of the shoe, tie the back end to the heel, and then adjust accordingly. They can firmly grip the ground and are not prone to slipping