Big grip on slick surfaces. Developed to give you the best grip on cold, snowy and icy surfaces, VibramĀ® Icetrekā„¢ outsoles help you stay safe on mountains and in chilly areas. Small supporting lugs and a large supporting surface provide aggressive grip, allowing you to move confidently across terrain at speed. For long-life durability, the rugged rubber construction does not scratch, absorb humidity or accumulate dirt.