You may wear antiperspirant but still sweat onto your clothes. Or find the perfect shirt at a thrift shop and need to rid it of BO. I tested out spraying 1:1 white vinegar/water mix to remove odor, but it either didn’t help or clothes smelled like vinegar! I made a paste out of baking soda and water, and this mix destroyed odor and broke down the layer of antiperspirant that can get on clothes and trap bacteria. I highly recommend baking soda!