The Nike Zoom Fly Flyknit Running Shoes are built for record-breaking speed. The Flyknit upper delivers ultra-lightweight support that fits like a glove. Underfoot, Nike React technology combined with a full-length carbon fibre plate delivers revolutionary energy return.
Flyknit uppers will encase each foot in streamlined comfort. Perforations in the forefoot increase airflow, creating a better, healthier environment for your feet to thrive in. The one-piece construction seamlessly integrates these areas of high breathability with stretch and support where you need it the most, adapting to the changing shape of your foot as it moves through the gait cycle. The bootie fabrication is designed for easy entry and exceptional comfort; removing the need for a tongue, it swathes your foot in lightweight support and a seamless, sock-like fit - shrinking the risk of rubbing and blisters, because we know how those can ruin your day.
The upper also boasts lightweight support through the flyknit construction. The construction has been tightly knitted in strategical areas to enhance support during intense running. In addition, fusible yarns create zones of structure, further enhancing support without adding weight. Inside the heel is brushed fabric and slight padding to ensure additional comfort to the Achilles tendon, allowing you tick off those miles and fully focus on that time you have set.
A full-length platform of React cushioning resides underfoot to deliver feathery durability plus smooth responsiveness. To produce this startlingly lightweight and springy midsole, crafted from synthetic rubber, Nike listened to the voice of the athlete. Their in-house sports research lab plugged footstrike data into a proprietary algorithm that determined how much cushioning was needed where. They simulated testing on approximately one hundred possible shoe geometries to quickly determine the handful they knew would work best for most runners and then merged the science with an elegant design, intended to feel like a slipper on a mattress.
The reactive nature of this clever midsole material means it absorbs impact and then expels it back out for a bounce-like effect. This energy-return technology reduces the use of superfluous muscle power, diminishing fatigue and enhancing performance, keeping you going for longer. Soft, generous and substantial, React will spare your joints as you strike down onto hard, unforgiving concrete and infuse every stride with the kind of zealous power that is often elusive in the running world.
In addition, a distinctive, aerodynamic heel is designed to delay air separation and reduce drag, tapering to banish every barrier between you and your top speed. Embedded within the generous React platform, and complimenting its responsive nature, is a full-length carbon fibre plate. This plate is the same plate used in the Vaporfly 4% and is intended to minimise energy loss during toe bend without increasing demand on the calf. It springs up under your heel as you stride forward, yielding the snappy, propulsive sensation that converts into extra-energised strides. The plate is curved at the front, helping give the runner back some of the energy they put in at toe-off. It's this fusion of two contrasting technologies - the React foam and the carbon plate - that results in the dynamic, power-infused Zoom Fly Flyknit, one of the most efficient marathon and training shoes that Nike has ever sold.
A lightweight, but durable outsole completes the shoe. Its traction pattern is informed by an algorithm to identify outsole shapes and sizes that optimise propulsion. The design places optimal rubber on the road for efficiency and traction; high-abrasion rubber adorns the rearfoot to increase durability, resisting the traumas of heel-strike to supply you with a reliable and long-lasting running buddy. Lightweight foam rubber covers the forefoot to provide grip and durability whilst enhancing energy-return. The ten-millimetre drop helps to minimise strain on the calf and Achilles. It's all for the athletes who crave a shoe that's hard to run slow in, a shoe that allows you to maintain any given pace while using less energy, a shoe that delivers world-class performance.