THOUSANDS of men across the south have been wearing their pants twice - without washing them.

A new survey has revealed that for 30 per cent of men, their biggest secret is that they are likely to wear a pair of pants twice in a row.

Nearly a third of men in Southampton and across the UK avoid washing their underwear for at least one day and a further eight per cent will go as far as three days in the same undies.

The survey, by appliances firm Glotech, also revealed that 90 per cent of women will wash their knickers after one use and most women wear their bra three times before washing and Londoners are the cleanest.

Ladies in the West midlands are likely to wear a bra for the longest before giving it a wash.

The survey also revealed that women own an average of 17 knickers and men around 13 pants.

People in Northern Ireland own the most underwear and Scots have the least.

Jeans are the clothes most often worn for an extra day, followed by jumpers then T-shirts.

East Anglian residents have the cleanest bed sheets, with almost half changing them at least once a week.

Scottish sheets are the dirtiest as only 36 per cent wash their’s weekly.

Spokesman for Glotech, Mikael Anderson said “In general Brits abide by the benefits of a twice-weekly wash, but we are able to improvise when we do not have the time.”