UPPER: Nike Gripknit makes an appearance: a sticky material that provides a better touch on the ball. It adapts to the shape of your foot and gives you the same grip in wet or dry conditions for a sculpted fit, similar to track cleats. CHASSIS:The full Flyknit upper is designed for speed. Incredibly lightweight and durable Flyknit on the sides reduces weight and provides support. Dynamic Fit collar wraps the ankle with soft, stretchy fabric for a secure feel.