How Do I Care For And Wash My Swimwear Properly?

Keeping your swimwear looking vibrant and fitting perfectly isn’t just about style—it’s about smart care. From rinsing away chlorine to avoiding the dreaded fabric sag, this guide breaks down everything you need to know to protect your swimsuit investment.

Here's what you'll learn in this article:

• Why rinsing your swimsuit is non-negotiable

• How to actually hand wash without damaging spandex

• What drying methods kill fabric elasticity (and what to do instead)

• Key materials in swimwear and how they respond to heat, chemicals, and oils

• The simple step-by-step routine for lasting swimsuit freshness

• The biggest mistakes to avoid if you want your suit to survive the season

• How to store your suit when it’s off-duty

Whether you wear a bold bikini or a flowy swim dress, the way you treat your suit matters. Let’s get into it.

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Your Swimsuit’s Enemies: Chlorine, Salt, Sunscreen, and the Sun

Your swimwear may be stunning, but it’s under attack the moment you hit the water—or even the sand. Chlorine, saltwater, sunscreen, sweat, and UV rays each contribute to the early demise of even the most premium swimwear. That vibrant tropical print or rich navy hue? It’s prone to color fading without the right care.

Quick tip: Rinse your swimsuit in cold water immediately after wearing it—even if you didn’t swim. Sunscreens and body oils can still break down fibers like spandex and elastane over time.

Don’t wait until you “feel like it”—make rinsing a reflex. Wearing your suit into a cold shower and skipping soap is a convenient hack.

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The Golden Rule: Hand Wash Only

Yes, hand washing is a bit more effort—but it’s the difference between a swimsuit that survives one season and one that lasts for years. Tossing your favorite tankini into a washing machine—even on delicate—is a fast track to stretch and shape loss.

Here’s how to wash your swimwear the right way:

The Soak-and-Swish Method

1. Fill a basin with cold water. Avoid warm or hot water—it degrades fabric elasticity.

2. Add a gentle detergent. Go for mild soap, a spandex-specific detergent, or even baking soda if you’re in a pinch.

3. Turn your suit inside out. This helps preserve prints and colors.

4. Swish, don’t scrub. Gently move it around for a couple of minutes.

5. Soak for 15–30 minutes. Especially useful after spa or pool exposure.

“How do I care for and wash my swimwear properly?” is really answered by mastering this one ritual.

Avoid powder detergents or anything labeled “extra strength.” These are often too harsh for delicate fabrics like Lycra or memory yarn.

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Don’t Destroy It While Drying

How you dry your swimsuit is just as important as how you wash it. The most common mistake? Twisting or wringing the fabric. Not only can this cause the fibers to snap, it also encourages bagging—a surefire way to ruin that body-hugging fit.

The Right Way to Dry Your Suit

• Gently press out water. Lay it on a towel, roll the towel up, and press to remove excess moisture.

• Lay flat to air dry. This keeps the shape intact. Always avoid wringing.

• Stay away from direct sunlight. UV exposure while drying leads to UV damage and fading.

• No tumble dryers. Ever. Even a “low heat” setting can destroy delicates.

Try drying your swim tops and swim bottoms separately on a drying rack, not hanging over a shower rod. Hanging can stretch out straps and seams.

Beware the Hidden Threats: Oils, Heat, and Abrasive Surfaces

Your swimsuit isn’t just fighting chemicals in the water—it’s up against everything from body oil breakdown to rough pool decks. While your one-piece may be designed to handle summer adventures, a few bad habits can turn even chlorine-resistant suits into saggy, faded disappointments.

Oil-Based Products = Elasticity Killers

Sun creams, tanning oils, and even some moisturizers can eat away at the elastane in your swimwear. These products weaken the fibers, leading to slack fits and baggy bottoms.

Pro tip: Let sunscreen fully absorb before putting on your swimsuit, or apply it around the suit’s edges to minimize contact.

If you do get lotion on your swimwear, rinse it off as soon as possible using cold water and a gentle detergent. Don’t let it sit—it’s not just about stains, it’s about fiber longevity.

Hot Tubs: The Silent Suit Destroyer

Soaking in a spa may feel amazing, but your swimsuit definitely disagrees. High temperatures + bromine = fast fabric death. Even suits marketed as “chlorine resistant” will deteriorate in hot tubs due to fabric elasticity breakdown.

If you love a soak, reserve an older or less-loved swimsuit for the tub. Think of it like "spa armor."

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Fabric Science: Understanding What You're Wearing

Not all swimsuits are created equal. At HannaBanna, our swimwear collection is built using premium materials designed to last—but every fabric has its limits.

Here's how common fabrics behave:

Sustainable swimwear options are gaining traction, often made with recycled synthetics. These options still need eco-friendly detergents and gentle care.

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Stain Emergencies & Repairs

Accidents happen—especially in summer. Whether it’s a drip of ice cream, a patch of self-tanner, or that dreaded underarm discoloration, stains don’t have to spell the end of your favorite suit.

Pre-Treat Before the Problem Sets

Use this DIY solution:

• Mix 1 part baking soda with 2 parts water

• Apply with a toothbrush or soft sponge

• Let dry before washing

Skip bleach—chlorine bleach weakens fibers, causes color fading, and even creates skin irritation from dyes. Stick with oxygen-based stain removers if needed.

Snags, Loose Straps, and Quick Fixes

• Loose strap? A quick hand stitch with polyester thread keeps it secure.

• Snag from a concrete ledge? Use a needle to pull the snag through to the back and tie it off.

Keep a mini-sewing kit in your beach bag or travel tote. You never know when a simple fix can save a day of swimming.

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How to Store Your Swimwear the Smart Way

So you’ve rinsed, washed, and dried your suit correctly. Now what? Proper storage keeps your suit fresh, prevents mildew, and protects fabric integrity between wears.

The Swimwear Storage Checklist

• Dry completely before storage. Even small moisture patches can lead to mold.

• Store flat in a drawer or breathable fabric bag—not a plastic one.

• Avoid folding straps tightly—they’ll lose shape over time.

For longer seasonal storage, tuck your suit away with a lavender sachet or silica pack to wick away excess moisture. This applies to your swim dresses, bikinis, and everything in between.

Creating Your Swimwear Care Routine

Let’s face it: summer gets chaotic. Beach days, pool parties, spa nights, and last-minute getaways don’t leave a lot of room for laundry discipline. But establishing a simple, repeatable swimwear care routine can dramatically increase the swimsuit lifespan of your favorite pieces.

Here’s what your post-swim ritual should look like:

Your Go-To Swimwear Routine

1. Rinse immediately in cold water after every wear.

2. Every 3–5 wears (or after heavy chlorine/oil exposure), hand wash with a spandex-specific detergent or mild soap.

3. Soak for up to 30 minutes when needed.

4. Air dry flat, away from sunlight or heat.

5. Store properly when completely dry.

Keep your essentials handy: a bottle of eco-friendly detergent, a clean towel for blotting, and a travel pouch for temporary storage on-the-go.

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Sustainable Swimwear Habits That Go the Distance

When you invest in high-quality swimwear—like pieces from our chic swim-dresses or our flattering, functional swim bottoms—it pays to take care of them sustainably.

Try these habits:

• Rotate suits: Don’t wear the same one two days in a row. Give memory yarn time to bounce back.

• Avoid fast fashion: Choose long-lasting, sustainable swimwear that prioritizes durability and eco-responsibility.

• Choose anti-bacterial rinse alternatives: Baking soda and vinegar can keep things fresh without harsh chemicals.

• Skip fabric softeners: They leave residue and reduce fabric performance.

By choosing smarter care methods, you’re not just protecting your swimwear—you’re reducing waste and consumption overall.

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Final Thoughts: Treat Your Swimsuit Like It’s Part of Your Wardrobe

Too often, swimwear is treated like a throwaway item. It’s not. With the right care, even your most worn-in bikini or tankini can stay in rotation year after year.

So next time someone asks, “How do I care for and wash my swimwear properly?” — you’ve got the answers, and the wardrobe to prove it.

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Shop the Looks Built to Last

Explore HannaBanna’s full swimwear collection, including timeless one-piece swimsuits and modern separates. Designed for performance. Built for beauty. Made to last.

Frequently Asked Questions: Swimwear Care

1. Can I wash my swimsuit in the dishwasher?

No. While it might seem like a convenient hack, dishwashers use high temperatures and strong detergents that are far too harsh for swimwear fabrics like spandex or elastane. Always hand wash your swimsuit in cold water.

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2. How often should I wash my swimsuit during vacation if I wear it daily?

If you're wearing your swimsuit every day, rinse it after each use, and hand wash it every 2–3 wears, or immediately after exposure to hot tubs, heavy sunscreen, or saltwater. Rotate between suits to give each one time to dry completely and recover its shape.

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3. Can I use shampoo to wash my swimsuit?

Yes—only in a pinch and only if it's a gentle, sulfate-free formula. Avoid shampoos that contain conditioners, oils, or silicones, as they can cling to the fibers and reduce fabric elasticity.

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4. Is it okay to use vinegar to remove swimsuit odors?

Yes. White distilled vinegar is a natural deodorizer. Mix 1/4 cup of vinegar with a sink of cool water and let your swimsuit soak for 15–30 minutes. Rinse thoroughly and air dry flat.

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5. Can I iron my swimsuit to remove wrinkles?

No. Do not iron swimwear. The heat can disintegrate spandex fibers, leaving shiny marks or even melting the fabric. To remove wrinkles, soak the suit briefly in cool water, then lay flat to dry naturally.

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6. Can I use a hairdryer to speed up drying time?

Avoid it. Direct heat—even from a hairdryer—can damage delicate swimwear fabrics and compromise shape and stretch. If you need it dry quickly, press it gently in a towel roll and lay it flat in a shaded area.

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7. Why does my swimsuit still smell after washing?

Persistent odors usually mean bacteria or oil buildup. Try soaking your suit in a baking soda and cold water solution, or use a small amount of anti-bacterial rinse. Be sure to dry completely before storing.

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8. How long does a swimsuit usually last with proper care?

With a consistent swimwear care routine, a high-quality swimsuit can last one to three seasons, depending on use. Daily swimmers or those frequently in chlorinated water may see faster wear unless using chlorine-resistant styles.

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9. What’s the best way to pack a swimsuit for travel?

Make sure your swimsuit is completely dry, then roll (don’t fold) it. Use a mesh or fabric pouch to allow airflow and avoid musty smells. Never store in a plastic bag, especially when damp.

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10. Can I reuse my swimsuit without washing if I didn’t swim?

If you didn’t enter a pool or ocean and avoided sunscreen or sweat, you might skip washing once. Still, a quick rinse in cold water helps remove body oils and air pollutants, especially to preserve color and shape.