The flip-flops which don't flip or flop

Going topless is always a sure way to attract attention. But now, it seems, that rule also applies to feet.

This summer's must-have fashion accessory is the topless flipflop - a sandal with no straps and no apparent way of staying on your foot.

The secret is the tacky water-based glue that keeps the foamy sole in place but does not come off on skin.

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Must have: The flip-flops in action

In the two weeks since the sandals have gone on sale - under the slogan "flip-flops that don't flip or flop" - an astonishing 3,000 pairs have been sold, despite minimal publicity.

Fans of the flip-flops say they are perfect for those looking to avoid unsightly tan lines and blisters, or for anyone who enjoys the sensation of walking barefoot.

Rob Norfolk, 60, whose Internet business Nude Sandals is the first to sell the flip-flops in Britain, said: "If you wear them on the street virtually everyone turns round and stares. You can see them thinking 'How do they stay on?'

"Eventually someone plucks up the courage to ask and I often do a little dance to show they still stay on.

"They're not likely to work for more than a season, but they are a fun holiday accessory or something to wear after the beauty salon when you've just had your nails done.

"They do need more tender loving care than the usual sandal - a regular brush in soapy water to keep them sticky. And they work more easily with girls rather than heavy men, although mine are still working."

The flip-flops, which come in five designs, including beach, rainforest and aloha sunset, cost £12.50 each and are available in three sizes - small, medium and large.

Invented in the U.S. and made in China, they have already proved a hit in Australia and Canada, where thousands of pairs have been sold.

Tash Archdale, 31, from London, who tested the flip-flops, said: "They feel surprisingly good - it's a really fun, spongey feeling. They went on ridiculously easily and didn't hurt or come off when I was walking.

"If you'd just had a pedicure you could just put them straight on without smudging your nail polish."