A race day supershoe. Unleash speed, no matter the distance. From 10K to half-marathons, this shoe can handle it all. From 10K to half-marathons this super shoe can handle it all. With a double layer of Helion™ HF hyper foam and a carbon Speedboard® sandwiched in between, it delivers on supreme speed, impact protection and energy return. Best in class ingredients Two layers of Helion™ HF hyper foam deliver an energy return you can feel. Its responsive cushioning absorbs impact and maximizes efficiency. A carbon Speedboard® flexes and propels you forward faster, energizing you to run for longer. Look and feel fast This sleek-looking shoe has been engineered for speed with its geometry, durable Helion™ HF and stiff carbon Speedboard®. Fast 10K, half-marathon, further? Not a problem. Balanced sensation This highly responsive shoe is balanced out by firmer cushioning, giving you control when you’re reaching peak speed. A strategically designed rubber outsole delivers impressive grip, even on curvy courses.