Brand new without box, 100% Authentic. Mid-cut collar offers a nearly seamless fit from ankle to foot. Lightweight Flyknit upper construction provides a snug fit. Auxetic outsole expands with the natural motion of your foot. Strap design offers a customizable, adaptive fit and delivers comfort along the top of the foot. 4-way stretch strobel is connected to the upper to allow the auxetic pattern in the outsole to flex with the foot.