The training shoe for fast intervals. With Helion™ HF hyper foam and a nylon-blend Speedboard® for high energy return.

Helion™ HF powers this lightweight running shoe for big energy return. Ideal for fast runs and intervals, it features an ultra-responsive midsole, rockered geometry, and nylon-blend Speedboard® for a fast, forward-rolling ride.

Now with Helion™ HF

Inspired by our pinnacle race-day shoes, the midsole features a layer of Helion™ HF for maximum rebound. Expect a responsive ride with a serious kick of energy return.

Maximum propulsion

Strong yet springy, the nylon-blend Speedboard® is infused with glass fibers for powerful forward propulsion. The rockered forefoot further enhances this forward-rolling motion.

Athlete-inspired design

The large logo and eye-catching grip pads on the tip of the toe box mirror the design of our elite-level racing shoes. So now, everyone can look like an On athlete.