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 of the Nike React Infinity Run Flyknit 4 to help keep you dry. Colour: Blue. Upper: Flyknit. Lining: Other Materials. Outsole: Rubber.