ALLY Traction-Cleats-Ice-Snow-Grips 85% Polyamid Und 15% Lycra Prevent a knee injury!  Perfect for dogwalking, walking to work or school, and easy terrain hiking! Excellent traction in snow, slush, ice, and on wet pavement! Super DURABILITY  Made of abrasion-resistant 1.2 mm manganese steel coils with zinc coating to prevent rust; secured to shoes with durable Polyelastomer outer band Easy to take on and off Hhighly elastic outer band with heel tab slips easily slips on and off of shoes. Very convenient if you are frequently going from slippery snow surfaces to stable ground. Easy to pack on the go  Pretty flexible and did not take up much space. Store the cleats after drying. ONE SIZE FIT MOST  Super flexibility makes it fits most of men and women shoes (5-10 US).