This design ensures motion efficiency

A layer of Helion HF for max energy return and rebound
Propulsive glass fiber nylon-blend Speedboard
Engineered woven mesh upper that's breathable and ultralight
Design inspired by our pinnacle, race-winning super shoes
Extreme rocker shape for a fast, forward-rolling ride
Updated toebox design for fast training sessions
Forefoot grip for added support during the toe-off phase

Shoes Deliver Light Contact With The Ground