What helps: Definitely choose natural fibers, such as cotton, linen, bamboo, or modal. This is especially true for underwear , bras, and T-shirts or tank tops that come into direct contact with your skin.
2. Wearing bras or underwear for too long without washing them
Bras, compression garments and similar tight-fitting garments easily absorb sweat, sebum and bacteria, even if they don’t look or feel dirty. If you wear them for several days in a row without washing them, you create space for odor to gradually and often completely unnoticed.
Why it matters: The area under the breasts is prone to moisture buildup and subsequent bacterial growth during the off-season, which can quickly result in an unpleasant sour or stale, musty odor.
What helps: Change your bras every day and wash them after one or two wears, ideally. Make sure they air dry thoroughly before wearing them again.