About this item Stronger and safer spikes: Featured 19 high quality stainless steel spikes per foot and firm chain system, providing excellent traction on a variety of terrain or other worst conditions, keep you safe and injury-free Durable and stretchy material: Made from thermoplastic elastomer(TPE),5 mm thicker than ordinary rubber,till strong performance under -45C.Easy to put on off with adjustable strap.Won't tear or snap,ensure long lasting comfort and durability Widely used and unisex: Suitable for male and female including teenagers,adult,elders. Used on angled terrain,ice roads,icy driveway,mud and wet grass,dangerous sections of trail,etc.Great for trail running,hiking,and ice fishing Flexible and pocket size: Suitable for various kinds of sports, hiking shoes, boots, mountaineering boots. The strap ensures more comfort and safety. Portable and lightweight, can be put into the carry bag included and will not take up much space