1.Material: TPE thermoplastic elastomer + special non-slip steel stud, odorless, can be bent at -40 ℃.2., polyster3.Available in a variety of sizes for men, women and kids., prevent slipping in snow and ice conditions.4.Cleats roll up nicely to be carried in a purse, work-bag, pocket. Lightweight and durable materials used5.Full foot anti-slip protection with 10 steel metal studs. Great for fishing, hunting, walking, jogging, hiking, running, shoveling snow, etc. Welcome to consult