Men's Nike React Infinity Run Fk 2 Shoe - Black - Low-top sneakers There's nothing worse than having to postpone our much-needed run or training session due to foot pain. The Nike React Infinity Run FK 2 Shoe is the most cushioned option from the Flyknit series, and is among our favorites because of how focused its design is on preventing injury. By removing material from the upper of the shoe, Nike was able to add more material to the midsole which has three layers of impact protection to prevent foot fatigue, and subsequent injury. Known for implementing cutting edge technologies for runners in all disciplines, Nike created this iteration of the Flyknit to energize your pursuit of passion. The Flyknit platform receives a slew of updates for improved stability. Triple-layered React midsole offers cushioning for injury prevention. Revised design is lightweight for ease of movement and efficiency. Flywire tech in the upper provides increased lateral support. React midsole foam offers high energy return with every stride. Rubber outer sole supplies reliable traction on wet roads.