Sometimes, there just isnt enough snow to justify a full snowshoe. Thats when you need the Permagrip Traction system which slips on right over your boots using the Crescent Moon SPL binding system to secure an aggressive toe and mid-foot crampon combination under the soles of your shoes. Perfect for icy, muddy, or slippery conditions such as spring or early winter trails. You can run or jog or walk with the Permagrips and youll feel like a snow spider as you claw youre way up steep icy trails where no one else can go. except others with Permagrips.