The shoe has an one piece Flyknit constructed upper, that gives a tight and individual fit. The Flyknit combines areas on the shoe with stretch and support, so you get a shoe with dynamic support on your foot. The yarn is more flexible on the areas that has stretch, while it it is close on the areas where you need support and stability the most. Furthermore, the Flyknit material is both breathable and gives a more unique, textured look to the shoe. The Zoom Mercurial XI Flyknit is a made with the Dynamic Fit Collar, which also is used on Nike's football boots. The Dynamic Fit Collar ensures a safe and supportive fit and together with the Flyknit upper, this offers you a good comfort and sock-like feeling. The existing Nike Zoom unit in the forefoot and heel creates a low profile fit and an ultra responsive shock absorption.