Nike React Phantom Run Flyknit 2 Lightly Used---Only worn a few times. The arch in these shoes was not agreeable to my foot. Still in great condition! Men's Size 7 (Women's 8.5) Original Nike Box. Pet & Smoke Free Home. The Nike React Phantom Run Flyknit 2 offers versatility for the everyday runner. Building on the foundation of its predecessor, the shoe expands on its laceless design by adding secure support that feels like it "disappears" on your foot. More foam means better cushioning, keeping you comfortable as you run.