STRIPPING down to your underwear is not usually in your job description at work.
But for Holmfirth man Daren Wild, baring almost all was all in the line of duty.
Daren works in the laboratory of Manchester-based detergent company Robert McBride, which makes cleaning products.
He and five colleagues posed in their pants for photos to promote the firm's sensitive Surcare detergents.
It was a picture inspired by the Dove toiletry range ads.
Daren, 38, said he was no stranger to publicity and bosses asked him if he would like to join fellow workers in the stunt.
He regularly appears on stage with Holmfirth's Turn Again Theatre and the New Music group in Oldham.
Daren said: "I do a lot of amateur dramatics. I think they thought I was just a bit mad."
The photo is being sent out with the results of a McBride survey that quizzed men across the nation about how often they changed their pants.
"I thought it was for an internal poster. I didn't think it would be going anywhere else!" said Daren.
About a quarter of those surveyed said they waited more than two days before changing their underwear.
About 81% of men who do not change daily are married.
Surcare market analyst David Briscoe said: "It adds fuel to the debate about men letting themselves go after they're married. Younger men change more frequently, due to sports activity and nights out."
About 56% of those aged 18 to 25 change at least twice a day and none change less than once a day.
In the 26 to 35 age group, 9% change less than once a day, 20% change each day and 71% change twice a day.
Men aged 36 to 45 are not so clean - 33% change less than once a day, 54% change once a day and 13% change twice a day.
Those aged 46 to 55 are the worst offenders, with 52% changing less than once a day. Around 39% change once a day and 9% twice a day.
Men aged over 55 are slightly better.
Only 31% change less than once a day, 59% change once a day, but none change twice a day.