Nike Mercurial Vapor Superfly Firm Ground Football Boots. The Mercurial Vapor Superfly is the first football boot to incorporate Flywire technology and is the lightest football boot Nike's ever put on the pitch, weighing just 190 grams. Nike Flywire technology reduces the amount of material required to support the upper to the bare minimum without compromising the boots durability or integrity and support. Due to constant testing and rigorous questions directed at some of the top players in the world, including Cristiano Ronaldo, Pato, Zlatan Ibrahimovic and Robinho, Nike was able to pinpoint exactly where these structural elements needed to be placed to give the best support possible when playing the game.The upper is also unique in that it is designed to adapt to the motion of the foot, making it superbly flexible and supple which is very important if you are a player that relies on you speed and quick turning. Flywire Technology - is strategically placed filaments that provide optimal support and comfort precisely where the foot needs it but still making the boot extremely lightweight. 7-layer carbon composite outsole - lowers weight with maximum strength and flexibility where you need it the most. Soft, supple Teijin synthetic leather - reduces weight and optimises feeling with the ball making for a very comfortable and lightweight boot. Special coating at upper lateral boot - with contrast-colour identifies zone for best ball control and improves grip if you are a skillfull player who needs and likes to dribble with the ball. Superlight, superstrong direct-injected dual-density heel studs - for reduced weight with multi-directional pattern for excellent grip on hard surfaces. This really is a revolutionary football boot that is loved by some of the world's top players. It is extremely lightweight, comfortable and grippy meaning that if you want to step up your game to the next level than these boots are sure to help you.