UK 7.5 comes with original bootbag and box.
UK 9 comes with no bootbag and replacement box.
 
The fastest players demand the fastest boots. The Nike Mercurial SuperFly IV soccer boots are worn by the reigning UEFA Ballon d’ Or winner Cristiano Ronaldo. The combination of performance and lightweight speed will help Ronaldo take his game to a new level.
 
Nike have equipped the Mercurial Superfly with an upper made of the lush and flexible Flyknit material. The material, which is also found on the Magista Obra, provides an unforeseen comfort and fit. As soon as you stick your foot into the Superfly, you will feel your foot become one with the boot, as if you were pulling on a pair of socks. But it is not just the Flyknit upper that provides a sock-like fit. Nike have also removed the tongue and instead equipped the boot with their Dynamic Fit Collar. It continues up the ankle, so the boot is not just a part of your foot, but actually both you foot, ankle and calf.
 
In order to generate even more touch and ball grip, the Flyknit upper has a Nike Skin cover, as well as a 0,1 mm thin ACC silicone layer. This results in a 3D-like texture that creates friction between boot and ball, which you will benefit from when dribbling at high speed, but also in connection with your passes and strikes.