The successor of the initiated runner favorite - Speed3 and Speed5 - has all the DNA of its predecessors and then some. The development process of the Speed6 has been based on a light version of Salming's Natural Running Support SystemTM, which facilitates for every runner to find and stay in their natural running stride. Salming's designers have been aiming for the initiated runners that loved the Speed3 to recognize the lightness and responsiveness but also appreciate the new developments and technologies put into the Speed6. 62/75deg technology assures that the shoe bends in exactly the right places. Features: - Midsole: RecoilTM + RecoilRTM - Outsole: Lite rubber - Stack: 22mm center of heel / 16mm ball of foot - Drop: 6mm - Lining: Mesh - Weight: 8 oz (Men's size 9)