The key element of #VibramTractionLug is the shape of the lug. In this advanced design concept that highlights @akutrekkingfootwear new ROCKET DFS GTX, three-dimensionality is optimized through specific grooves and small rubber inserts arranged along the side bands of the lug. The contact surface area is increased by 50% and traction is 25% higher. #Vibram #ConfidenceInEveryStep #YourConnectionToEarth