
The British designer had her models wear cropped sweatshirts, stretch bodysuits and daisy-print shorts in bright yellow, aqua and tropical lime as they danced, cycled and performed aerial yoga.
A team of four synchronised swimmers sporting black bathing suits with side cutouts even put on a performance in a small swimming tank.
"I love it. They are amazing. It's not the kind of thing you see at London Fashion Week is it?" McCartney said.
McCartney has been designing high-performance sports gear for Adidas since 2005. Her brand got a big boost in international recognition last year when she won plaudits for her Union Jack-inspired designs for Britain's home team at the 2012 London Olympics.