No one can accuse them of melting into the crowd.
With their lurid pink and purple uniforms, the army of Olympic volunteers will be easy to spot.
In fact the new outfits are so bright, Mayor of London Boris Johnson apologised for them yesterday.
Greeting some of the 8,000 'London Ambassadors', who will guide tourists around the capital, he said: 'What do you think of the uniform?
'It's quite striking, isn't it? I hope you don't feel too ridiculous. We need to overcome our natural British reserve and be a little bit more like the Australians!'
Some observers even described the outfits as looking more like Percy Pig sweets from Marks & Spencer.
They consist of a polo shirt with matching fleece, anorak and rucksack as well as a straw trilby with a pink ribbon.
They are based on the Olympic 2012 logo, which MPs described as 'childish' when it was unveiled five years ago.
The ensembles are based on on the Olympic logo, which cost £400,000 to design but was lambasted by MPs as 'childish' when it was unveiled in 2007.
Magenta, one of the official Olympic colours, has been chosen as the 'way-finding' colour and will also feature on signposts for the games.
Greeting the volunteers at Wimbledon Station in South London, Mr Johnson added: 'I think the uniforms are beautiful. I have a rucksack in the same livery but it's not the same style.
'Whoever designed it needs a prize. It's very striking. It's positive. It's optimistic.'
Asked whether he'd be wearing his uniform to the games, he added: 'I wouldn't rule it out. I have a fleece already but this could be a good replacement.
'It's in extremely good taste and style, and typical of London.'
The uniforms were received with brave faces from the Olympic ambassadors, who will be working as volunteers during the games to help visitors navigate London.
The volunteers will be stationed at key points in the city such as airports and tourist attractions to give directions and advice.
Andy Von Hirshberg, 29, a brand manager from London, said: 'The uniforms are interesting. I was a little surprised at first saw them, but at least we'll stand out. I can live with wearing pink and purple for a week.'
Danielle Holdsworth, 41, a marketing manager from London, added: 'This is the first time we've seen the uniforms, and they're certainly bright. They are quite out there, but we as ambassadors need to be out there so it's totally the right thing to wear.'
London Ambassador Barbara Edwards, 65, said: ‘I like the trilby hat as it suits both men and women and will be useful to have as we will be outside a lot of the time in the sun. The black bottoms are also practical and sensible. I don’t mind the purple and the pink as you need to be visible and stand out and they’ve obviously taken some of the logo colours.
'But while the shirt is fine on the men, it gives a 'big pink bra' effect on the women, which isn’t particularly flattering and will be more noticeable on ladies with a larger bust.'
The ambassadors were selected from more than 30,000 applicants and are aged between 14 and 85, speaking 40 languages between them.
Organisers said they were looking for people with good communication skills as well as knowledge of the city.
They will volunteer for a maximum of five hours per shift and up to six consecutive days.
Also unveiled yesterday was the design for the Olympic information kiosks – also in shocking pink - which will be stationed at 43 locations in the city.
Both have been designed by M Integrated Solutions, based on guidelines set out by the the London Organising Committee of the Olympic and Paralympic Games (LOCOG).
The mixed response echoes the public reaction to the controversial London 2012 logo after it was unveiled in 2007.
At the time, the London Olympic committee came under fire for approving the over-the-top design, which drew fierce criticism for being garish and 'childish.'
Contemporary British designers were near-unanimous in their disapproval of the logo, describing it as 'confusing' and 'embarrassing'.
Stephen Bayley, founder of the Design Museum, said it was 'a puerile mess, an artistic flop and a commercial scandal.'
A two week public exhibition has opened at City Hall to give a taste of how London will look and feel during Games time.
The exhibition will feature examples of the colourful dressing and bunting that will be on display throughout the city, plus a number of examples of how high streets and towns will be getting involved with the celebrations.