<!--ProdInc[1550001372]/Mall:[champssports_US]--> Progress aint linear, but comfort can be. Sharpen your running game and get busy chasing goals in the Nike Infinity Run Flyknit 4 SE. Designed with equal parts comfort and style, these upgraded runners feature the Nike ReactX foam to give back energy with every step you take. Engineered with the best-fitting Flyknit yet, these speedsters come with a new internal Flyknit fit band that helps you dash to the finish line with added stability and a secure fit. When it comes to numbers, the ReactX foam gives you +13% energy return compared to React foam and reduces the carbon footprint of the midsole by at least 43% compared to the previous iteration. Simply put, the Nike Infinity Run Flyknit 4 SE has got you covered. Nike Infinity Run Flyknit 4 SE features: Foam collar adds comfort. Flyknit tongue feels plush and supportive. Water-repellent liner in the toe keeps the moisture at bay when the weather turns. Curved outsole allows smooth transitions. Increased rubber at the outsole gives traction and durability. Waffle outsole maximizes durable traction.*Size up a half-size when buying these sneakers.