Montbell's Chain Spike are excellent for providing traction when climbing in low elevations in winter or on snow fields in the summer. They fit over your boots and are extremely easy to take on and off. The band is extremely soft and the spikes are made with stainless steel, which helps resist rusting. The Chain Spike can be used on different types of shoes, from hard ski boots, to soft sneakers. Stuff sack included, sold as a set.