That haunting odor you smell comes from nasty bacteria that munches on the sweat in your gym clothes.

Silica gel will absorb that sweat so bacteria has nothing to feed on, thus removing the lingering stink.

Just toss a few packets in your bag and let them work their magic.

In fact, you might use silica gel bags to help de-stink shoes too.

Its also pretty good atkeeping food fresh too.

Why you should never throw away silica gel bags| YouTube