You might have thought thIe Mercurial was as fast as it could be. Unfortunately for defenders, you were wrong. The Nike Mercurial Vapor IX is back, with even more lightweight speed. The Teijin upper includes speed control technology, with a texture you can see and feel. This provides the optimal control in all conditions, because there's no time for second-guessing in this game. The contoured last delivers a glove-like fit that is complimented by a light, perforated sockliner and textile top cloth. These mirror the foot's natural shape for low-profile cushioning. Underneath, a full-length glass fiber composite outsole holds direct-inject blades and screw-in studs that are inspired by the pros. The combinations is built for extreme comfort and acceleration on soft, natural surfaces. An extra set of studs is included in the box. Wt. 7.6 oz.