A Canadian student wore the same pair of jeans for 15 months without washing them as part of an experiment.
Josh Le donned the $165 trousers 330 times and documented his progress on Facebook and YouTube after initially joking that he was going to perform a bacterial experiment on them.
''I half jokingly said we should do a bacterial analysis on them [Le's jeans] and that's where it sort of started.''
He told ABC News: ''My professor mentioned that she researches on textiles and bacteria, so it piqued my curiosity there.
''I half jokingly said we should do a bacterial analysis on them [Le's jeans] and that's where it sort of started.''
Josh put his trousers in the freezer overnight or let them air for a few hours if they started to smell.
He added: ''If you don't wash your clothing, it raises questions. I was very careful with odor. I did the smell test in the morning.''
