Cushioned Bounceboard: Made using ultra-responsive Helion™ HF hyper foam, the shoe’s innovative Bounceboard construction propels you forward with power. A removable layer of plush cushioning, it maximizes energy return for a bouncy feeling underfoot – all while abiding by stack height regulations. A cushioned ride, ideal for long races. Carbon fiber Speedboard®: The stiff, spoon-shaped Speedboard® works like a spring, absorbing energy and transferring it into the forefoot for the most powerful take-offs possible. And strategically-placed CloudTec® elements create a faster, smoother roll-through. The result? Increased running efficiency. Ultralight Upper: Ultralight and breathable, the one-piece, semi-transparent mesh upper helps to reduce overheating. The cage-like construction locks down the midfoot for a secure, race-ready fit. Key features Striking fast racing shoe Innovative Bounceboard that propels you forward Ultra-responsive Helion™ HF hyper foam for energy return CloudTec® elements create a faster, smoother roll-through One-piece, mesh upper helps to reduce overheating Ultra-cushioned ride protects against impact Spoon-shaped Speedboard® to absorb and transfer energy Super powerful take-offs 4mm offset
