The Nike Mercurial Vapor was first introduced during World Cup 2002, and has been worn many times (especially in limited edition colors) by famous footballers Cristiano Ronaldo and Didier Drogba. The Mercurial is on to its 4th edition with the most famous version now being released to the public for $400. The boot is made almost entirely from carbon fiber and weighs only 6.7 ounces.