Bacteria which breed in these clothes will also cause odor. Micrococci bacteria that trigger type smell known to be easily breed in polyester than cotton.
Although you feel the sweat released during exercise does not smell, but micrococci can turn into smelly sweat. These bacteria are also known to change the long-chain fatty acids, hormones, and amino acids into smaller components that will cause body odor.
Research on bacteria in the polyester material is done by Chris Callewaert of Ghent University. In his studies he examined 26 healthy people who do not have a skin infection or illness.
