London 2012 stylewatch: five things we've learned from Olympic fashions

Thank heavens for Stella McCartney Seriously. Everyone was so quick to put a downer on her kit. Not enough red. Not enough flag. Blah. But when the Games began and Team GB hurtled into action wearing these clothes it was clear that the fashion designer was onto to a winner. Whether it was the red gymnasts leotards with their not-too sparkly detail, or the graphic blue and white crop top-knicker combo, as seen on Jessica Ennis, these clothes had sporting dynamism. Plus, the cut of the tracksuit jackets was flattering and the use of red to outline necklines looked graphic and modern. A triumph. Athletes love a statement accessory Forget the catwalks of London fashion week or the pages of the September issue of Vogue, these Olympics have been rammed with fancy accessories. If yellow trainers don't become a thing – hello Mo Farah and Greg Rutherford - following the Games, I'll eat my hat. Or maybe a rower's visor or a fancy cycling helmet or even a baseball cap. Hasn't headgear been everywhere? And there was bling too. From mirrored eyewear to Chanel earrings (Sanya Richards-Ross) via metallic scrunchies and even an amazing golden hula hoop at the rhythmic gymnastics. Even an ahead-of-the-curve sighting of some very next season leather gloves turned up on the hands of Team GB's sailing duo Hannah Mills and Saskia Clark. Bravo. In sports, as in fashion, you cannot please all of the people all of the time People, I give you Russia. The pattern on their zip-up tops was derided by practically everyone as a car crash of eye-bleeding proportions. The tops themselves resembled shell suits. And yet there was something rather fabulously fashion about the look. Think Keith Haring, a dash of remixed paisley, a hint of 1980s Moschino and a dash of Christopher Shannon circa now. In short: Russia was the sartorial curveball with Dalston attitude. Never underestimate the power of sporting hair London 2012 was in danger of becoming the Games where sideburns and mod hair ruled. Luckily, there was Louis Smith and his incredible barnet. Razored super short on the sides but with a longer tidy top, this look, also favoured by fellow gymnast Marcel Nguyen of Germany, is the perfect balance of streamlined and edgy. It's a bit Berlin with a side of pommel horse. This particular hairdo is surely destined for post-Olympic trend status. The new floppy Harry Styles mop? On a separate hair note: the games even seem to have inspired Boris Johnson to have a hair makeover. Dare I say it, but when he met Mayor Eduardo Paes of Rio de Janeiro on Friday he looked rather like a man who'd a) had a deep conditioning treatment and b) finally discovered the comb. David Cameron looks desperate in a polo shirt Sorry Dave, it doesn't matter how casually you unbutton your sporty polo top, you still look like a guffawing posh boy.