Nike ZoomX Invincible Run FK Sneaker in Black. - size 9 (also in 10, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9.5) Nike ZoomX Invincible Run FK Sneaker in Black. - size 9 (also in 10, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9.5) FlyKnit upper with rubber sole. Lace-up front. Lightweight and flexible. Responsive foam. Padded collar. Imported. NIKR-WZ366. CT2229-001.