Adidas Ultra Boost 4.0

Adidas Ultra BOOST 4.0 slightly changes the vamp knitting technique. The entire vamp adopts a longitudinal structure and transverse knitting method to enhance the extensibility of the vamp. In addition, the density between the woven structures is reduced, making the upper tighter, and the support and wrapping performance is better than before. The most important thing is to adjust the tilting height of the tongue upwards in the design, which not only increases the length of the shoe mouth, but also alleviates the problem of pressing the instep.