React Infinity Run Flyknit 4 size-xxl-16 and better with time

and better with time

springy UA HOVR+ cushioning to keep your legs feeling fresh

fully lined in ultra soft fleece

The memory foam not only feels great

React Infinity Run Flyknit 4 size-xxl-16 and better with timeA supportive and cushioned shoe built for a smooth run. With supportive cushioning built for a smooth run, the Nike InfinityRN 4 is a brand new take on a familiar favorite. It's made from our all new Nike ReactX foam, which gives you 13% more energy return compared with Nike React foam, to help you stay fresh and bouncy. (What's more? Nike ReactX reduces its carbon footprint in a pair of midsoles by at least 43% compared to Nike React foam.*) We