But jeans can be more divisive, with some even saying to never wash them.
"I never said don't wash your jeans," he clarified in conversation with CNBC's Christine Tan as part of the "Managing Asia" show broadcast last month.
Bergh still doesn't use a washing machine to clean his denim.
"True denim heads, people that really love their denim, will tell you to never put your denim into a washing machine.
This means keeping jeans on in the shower and covering them in soap as you would your body, Bergh explained.
Persons:
Levi Strauss, Charles Bergh, CNBC's Christine Tan, Bergh, doesn't, I've
Locations:
Asia