How to Wash and Care for Your Swimsuits So They Last for Years

3 minutes, 4 seconds Read

There is nothing quite like finding that absolutely perfect swimsuit the one that fits like a glove, boosts your confidence, and makes you feel ready to conquer every pool day and beach vacation. But let’s be honest: high-quality swimwear is an investment, and the elements are working hard against it. Every time you dive into the water, your favorite bikini or one-piece is bombarded by a harsh trio of fiber-destroying villains: chlorine, salt water, and oil-heavy sunscreens. If you just throw your wet suit into a dark beach bag and toss it into a standard laundry cycle later, you are inadvertently fast-tracking its journey to the garbage bin. To protect your investment and keep your swimwear looking vibrant and structurally sound, you need a proactive care routine.


The absolute golden rule of swimsuit longevity is the immediate rinse. Even if you aren’t ready to fully wash your gear the second you step away from the pool or ocean, you must rinse it in cool, fresh water immediately. Think of your swimsuit’s fabric like a sponge; stretch fibers like spandex, nylon, and Lycra are highly porous and soak up ambient chemicals. By rinsing your suit under a tap right away, you flush out a significant amount of residual chlorine and sea salt before they have a chance to chemically bond with and degrade the elastic. This incredibly simple, two-minute habit prevents the fibers from becoming brittle, stretching out, and losing that signature snap back.


When it comes to actual washing, step away from the washing machine and your standard laundry detergent. Standard household detergents are formulated to break down heavy proteins and oils in durable fabrics like cotton, but they are far too aggressive for delicate swimwear elastics, often stripping the color and eating away at the synthetic fibers. Instead, fill a clean sink with cold water and add a tablespoon of a mild, gentle liquid soap or a dedicated swimwear wash. Submerge your suit and gently agitate the water with your hands, allowing the soapy water to work through the fabric. Never wring, scrub, or twist the material, as this forcefully snaps the delicate internal elastic threads, leading to a saggy fit.
Dealing with sunscreen stains and stubborn chlorine odors requires a slightly more strategic approach.

Sunscreen oils and mineral blockers are notorious for leaving yellowish stains along the straps and leg openings of lighter suits. To combat this, gently spot-treat the area prior to washing with a drop of gentle dish soap, which is specifically formulated to cut through oils without damaging the underlying material. If your suit smells like a public pool even after a wash, add a tablespoon of baking soda or a splash of white vinegar to your cold-water soak. These natural ingredients neutralize chemical odors and help lift away deeply embedded salt crystals without compromising the fabric’s integrity.


Finally, how you dry your swimsuit is just as critical as how you wash it. Under no circumstances should a swimsuit ever step foot inside a clothes dryer. The intense heat of a dryer instantly melts and warps the delicate elastic fibers, ruining the stretch and permanently altering the shape of your suit. Furthermore, avoid hanging a wet swimsuit by its straps on a hanger or a clothesline. The heavy weight of the water pooling at the bottom of a hanging suit will stretch out the shoulder straps and torso over time. Instead, lay your suit flat on a clean, dry towel, gently roll the towel up like a sleeping bag to absorb the excess moisture, and then lay the suit flat in a shaded, well-ventilated area away from direct sunlight, which can rapidly fade those gorgeous summer colors.

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