The Pro will give instant confidence and safety in snowy or icy walking conditions. You will feel the same solid and predictable grip you are accoustomed to feeling on dry syrfaces. The patented coil design provides 360 degrees of traction on packed snow or ice. The YakTrax Pro is made of a natural rubber blend and high strength abrasion resistant steel coils designed for increased durability. The Pro also comes with a removable performance strap for stability during use.