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Nikes supportive and high stack daily runner returns, with updates to upper, midsole and outsole, for a brandnew ReactX Infinity Run Flyknit 4 Wide in BlackWhite, that offers you the peace of mind to go further and faster. The Nike ReactX Infinity Run Flyknit 4 Wide uses new ReactX foam, which offers 13 more energy return than the previous version, with a 43 lower carbon footprint, for a more sustainable, and more efficient stride.That midsole is shaped for efficiency and support, with a curving outsole to rock you through the transition, and a geometry with tuned support and focused cushioning.The upper also provides a stable and secure fit, as well as giving Nike Runnings best fitting flyknit yet. At the toe, a liner provides a water repellent finish.Finally, a waffle outsole with increased rubber provides improved durability and traction.Put together, these components make a more environmental, more efficient, and more comfortable feel that has the durability to last all the miles you will want to put into them. ReactX foam gives you an incredibly smooth feeling Updated Flyknit gives you a stable, secure feel. More room in the toe box adds comfort Waffle outsole provides durable traction Flyknit tongue is adjustable and plush Foam collar is soft and supportive to the touch Increased rubber at the outsole gives traction and durability Please note If you havent purchased this product before, we recommend you go up half a size to achieve the perfect fit