Because Nike unveiled its highly technical multi-directional traction Mercurial Vapor Superfly II, adidas responded with the new F50 adizero soccer cleat to counter Nike's cleats and up the soccer game, in face of the upcoming 2010 FIFA World Cup. And, adidas put up a pretty good fight with the F50 adizero, which is an entire ounce lighter than the Mercurial Vapor Superfly II at 165g. To make what might be the lightest cleats in the market right now, adidas used a hollow core construction and thermobonded the cleats to reduce weight, as well as increase durability. Getting a little bit more technical, the F50 adizero upper is constructed from Sprintskin, a revolutionary microfiber upper which provides a close, second skin fit and textured ball control. Other features include the new Spring Frame technology, external heel counter, ball control element, removable insoles and off-centered lacing. All these might sound like footie jargon, so it would be easier to understand the extensive work which has gone into making the F50 adizero with a video, and adidas has also just released that. Enjoy and revel in the level of technology adidas brings to its performance gear.