V-Alpha Vibram Megagrip offers excellent grip properties on both dry and wet terrainwhile maintaining a high level of durability.Developed for the user who frequently encounters slippery surfaces, Megagrip offers an incomparable combination of grip and durability.The V-Alpha is the essential outdoor minimal training tool, and is 100% true our original philosophy: a protective tool for the foot which allows ground sensory perception, performance and dexterity. The flexible rubber outsole features our most versatile compound, Vibram Megagrip. This compound provides both grip and durability over time in both wet and dry conditions. Weight = 4.8 oz. / 136 grams3.7 mm rubber outsole 2 mm Foam insole for added comfort 50/50 wool / synthetic upper material for improved breathability and reduced odor Machine Wash Cold / Air Dry