Stella McCartney on 2012 Olympic kit

Team GB's athletes will step out in a dark indigo blue kit, inspired by the union flag, with red shoes, when they compete at the 2012 London Olympics.

Leading designer Stella McCartney was watching as a host of athletes took to the catwalk to launch the kit at the Tower of London.

She told the BBC that catering for the entire team had been a challenge, but that it was also "a proud moment".