What causes smelly feet?
Sweat is released throughout the day to keep the skin moist and supple. Sweat itself is odorless, but creates a beneficial environment for certain bacteria species to grow and produce bad-smelling substances. The same species are naturally present on our skin as part of the huMicrobman flora, but in rather low numbers.
Some shoes and socks can inhibit evaporation and thus increase the amount of sweat you produce, thereby providing the perfect environment for ‘stinky-feet-bacteria’ to thrive. Since our feet have more sweat glands than on any other part of the body they typically start to smell bad first.