Make sure to wash your swimsuit after each and every wear—even if you don’t go in the water. “Sunscreens contain ingredients that can be damaging to the fabric and can lead to the eventual breakdown of the material,” says Marysia Reeves, designer of Marysia Swim (marysiaswim.com). To top it off, some SPFs are more detrimental than others, warns Lindsey J. Boyd, co-founder of the all-natural detergent line, The Laundress. Mineral-based lotions and oil formulations can cause yellowing or gradual stains over time if swimsuits are not washed properly.
: Cold gentle machine wash garment separately, or hand wash with lukewarm water.
: Use mild detergent.
: Drip dry in shade.
: Do not wring, soak or bleach. Do not tumble dry. Do not leave rolled up wet. Do not iron. Do not dry clean.