Two popular Nike technologies converge in the Nike Free RN Flyknit 2017 ‘Black’ sneaker. The seamless Nike Flyknit upper consists of high strength fibers that allow for a supportive, sock-like fit that offers flexible containment. Underneath, Nike Free technology melds the midsole and outsole to reduce bulk and weight for a more natural stride. The sole also features laser-cut grooves that help mimic a barefoot feel. The entire silhouette is adorned in black, offering a streamlined look.