Attributes . 6 Tungsten Carbide Due North(R) Ice Diamond(TM) Spikes, Along With the Bi-Directional Tread, Provides Powerful Traction With Maximum Grip, Enhanced Rubber Compound Provides Added Traction and Secure Fit While Retaining Elasticity In Sub-zero Temperatures, Geometrically Designed Top Webbing and Improved Shape Provides a More Comfortable and Secure Fit on a Greater Variety of Footwear, Knurled, Textured Lining and Wide, Thick Heel Strap Grips Footwear Better and Helps Keep Traction Aids In Place for Longer Wear and Optimal Performance . Names