German fencer Britta Heidemann presents the new team fashion for the upcoming London Games in Duesseldorf, Germany. (AP Photo/Frank Augstein)

British gymnast Louis Smith models an outfit during a show at the launch of the team kit that will be worn by British athletes at the Olympic and Paralympic Games at the Tower of London in London. The kit was designed by McCartney. (AP Photo/Matt Dunham)

British triple jumper Phillips Idowu, left, and heptathlete Jessica Ennis, right, pose in front of a depiction of the British Union Flag with designer Stella McCartney. (AP Photo/Matt Dunham)

From left, British athletes, 400m runner Christine Ohuruogu, paralympic cyclist Jody Cundy, paralympic swimmer Eleanor Simmonds, BMX cyclist Shanaze Reade, triple jumper Phillips Idowu, heptathlete Jessica Ennis, gymnast Louis Smith, paralympic sprinter Jonnie Peacock and modern pentathlete Heather Fell pose for photographers during the launch of the team kit that will be worn by British athletes at the Olympics. (AP Photo/Matt Dunham)

German Olympic team members present the new team fashion for the upcoming London Games in Duesseldorf, Germany. (AP Photo/Frank Augstein)

Olympic medalist Ryan Lochte wearing Speedo's new Fastskin 3 swimsuit. (AP Photo/Kathy Willens)

Olympic medalists Michael Phelps, left, and Natalie Coughlin model Speedo's new Fastskin 3 swimsuit. (AP Photo/Kathy Willens)

Australian Olympic team athletes in official uniform. From front left, Libby Trickett, Naomi Flood, Sarah Tait, and Murray Stewart, and from back left, Kynan Maley, Lauren Jackson and Adam Gibson. The uniform will be worn by Australian Olympic team members during the opening ceremonies. (AP Photo/Rob Griffith)

Olympic medalist swimmer Ryan Lochte relaxes in a Ralph Lauren Olympic uniform at the University of California-Irvine. (AP Photo/Reed Saxon)

Olympic gold medalist decathlete Bryan Clay models a Ralph Lauren Olympic uniform at the University of California-Irvine. (AP Photo/Reed Saxon)

Fashion designer Giorgio Armani, foreground center, poses with Italian Olympic team athletes, wearing the official uniform he created for the London Games. (AP Photo/Antonio Calanni)