Unleash your best self every day with the Nike React Infinity Run Flyknit 4, the ultimate choice for comfort on every run. Take on your running challenge with the React Infinity Run Flyknit 4.

Maximum cushioning provides elevated comfort for everyday runs. Experience a soft, rocker-shaped platform made with new ReactX foam underfoot, and an ultra-comfortable collar and tongue for a snug feel. Plus, a water-resistant membrane was added to this version to help keep you dry.

Midsole
The midsole is made of React foam, which consists of a combination of thermoplastic elastomer (TPE) and ethylene vinyl acetate (EVA). Nike's React foam provides a lot of cushioning and is extremely responsive thanks to this unique combination of polymers. It is specifically used by Nike to prevent running injuries. As a result, Nike React foam is one of the most complete foams available.

Upper
The upper is made of Nike Flyknit. This is made of strong, yet lightweight yarns that are woven into one whole. Around the midfoot, the material is woven more tightly to provide support, while at the forefoot the material is made flexible and breathable. A knitted upper ensures that the material can be stretched with the foot in all directions and provides a high level of breathability. Flywire technology replaces laces with high-tensile wires that act like suspension cables and provide precise support.

Outsole
With a rubber outsole, the shoe provides good grip and traction while running.