Nike React Infinity Run Flyknit 2 is still one of Nike's most tested running shoes and designed for helping you avoid injuries. This shoe has an updated upper with Flywire-technology combined with Flyknit for increased breathability and support when needed. The tall midsole gives lasting comfort and soft responsiveness. About Nike React Infinity Run Flyknit Neutral running style For daily training Reduces the risk of injuries 9 mm drop New upper with Flywire-technology The midsole provides soft responsiveness and long-lasting comfort. Upper The React Infinity 2 has an advanced Flyknit-upper that provides increased breathability in areas where you need it the most. The material is strong and durable and supports your foot securely and comfortably. Moreover, the Flywire-technology offers extra stability and support through the midfoot. Midsole The shoe is constructed with a light and durable React-foam midsole, providing a smooth and responsive run. The midsole has a seesaw shape, which contributes to increased flexibility when your foot lifts itself from the ground. Moreover, it provides a more smooth and cushioned run. Outsole The outsole on the Infinity is made with more foam to deliver better traction and durability. Its wide shape provides a more stable run that helps release more energy for each step you take.