Once you've taken a few steps in the Nike Air Zoom Alphafly NEXT% 2, you'll never want to put on your old favourite running shoes again. These running shoes are designed to help you achieve your personal best. A thick yet lightweight support system, combines comfort and speed. Experience the greatest energy return as you set personal records and outpace the competition. The dynamic design is inspired by Eugene, Oregon - Tracktown USA - where the best athletes in the world compete. Two Zoom Air units in the forefoot and ZoomX foam across the sole deliver Nike's highest energy return cushioning system for more bounce in every step. A thin rubber outsole improves traction and allows for more ZoomX under the Zoom Air cushioning. The additional foam not only provides more bounce, but also a better transition from heel to forefoot. The full-length carbon fibre plate provides an improved roll-off that makes you want to take the next step. It propels you forward while supporting every step.