Reliable cushioning, good support, and a smooth ride: the Nike InfinityRN 4 reinvents a classic. It's made with our all-new Nike ReactX foam, which delivers 13% more energy return than React foam, so you can conserve your energy for a dynamic stride. (What's more? To help care for our planet, Nike ReactX reduces the midsole's carbon footprint by at least 43% compared to Nike React foam.) We've paired ReactX foam with Flyknit, Nike Running's most supportive material yet, so you can run with confidence thanks to the soft support and breathability of the upper. It's the kind of shoe that cushions every step.
Waffle outsole for durable grip.
Adjustable and comfortable Flyknit tongue.
Soft foam collar for a comfortable fit.
Outsole with more rubber for increased grip and durability.
