Original Model On footwear=efficient running style promoting forward foot strike Breathable mesh upper Molded heel helps comfortably lock the foot in place Lightly padded tongue and collar Built-in arch support Speedboard=enhanced flexibility & converts landing power into forward movement. 7 mm CloudTec® cushioning technology only active during the foot strike, and becomes firm for an efficient toe-off.l CloudTec rubber=lasting durability Honeycomb traction pattern=reliable grip Weight: 14 oz