How Do You Properly Wash a Bathing Suit to Keep It Looking New?

AvatarByColleen Barnes Shower Routine & Lifestyle

A bathing suit is more than just a piece of swimwear—it’s a vibrant expression of your summer style and a trusty companion for countless beach days, pool parties, and relaxing vacations. But after all the fun in the sun, how you care for your bathing suit can make all the difference in keeping it looking fresh, vibrant, and comfortable season after season. Understanding how to properly wash your bathing suit is essential to preserving its shape, color, and fabric integrity.

Washing a bathing suit might seem straightforward, but it involves a bit more care than tossing it in the laundry with your everyday clothes. The delicate materials and unique construction require gentle handling to avoid damage from harsh detergents, chlorine, saltwater, and even the heat from dryers. Taking the right steps when cleaning your suit ensures it stays soft, stretchy, and ready for your next swim.

In the following sections, you’ll discover practical tips and expert advice on how to wash your bathing suit effectively, extend its lifespan, and maintain its vibrant look. Whether you’re a casual swimmer or a beach enthusiast, mastering these simple care techniques will keep your swimwear in top shape for many sunny seasons to come.

Choosing the Right Detergent and Water Temperature

Selecting an appropriate detergent is crucial for maintaining the integrity of your bathing suit’s fabric. Harsh detergents or those containing bleach can degrade the elastic fibers and cause colors to fade. Opt for gentle, mild detergents formulated for delicate fabrics or swimwear. These detergents help preserve the elasticity and vibrant colors, ensuring your bathing suit lasts longer.

Water temperature plays an equally important role. Always use cold or lukewarm water when washing your bathing suit. Hot water can break down spandex and other synthetic fibers, leading to loss of shape and elasticity. Cold water helps to maintain the fabric’s integrity and prevents color bleeding.

  • Use mild, non-bleach detergents specifically for delicate fabrics
  • Avoid fabric softeners as they can damage elasticity
  • Always wash in cold or lukewarm water (below 30°C/86°F)
  • Rinse thoroughly to remove all detergent residue

Hand Washing Techniques for Optimal Care

Hand washing is the preferred method for cleaning bathing suits because it minimizes stress on the fibers. Begin by filling a clean basin or sink with cold or lukewarm water and adding a small amount of mild detergent. Submerge the bathing suit and gently agitate the water with your hands to distribute the soap evenly.

Avoid scrubbing or wringing the fabric, as this can cause damage. Instead, gently press the fabric against itself to help dislodge dirt and oils. Soak the bathing suit for about 10 to 15 minutes to allow the detergent to work effectively on any residues such as chlorine, sunscreen, or body oils.

After soaking, rinse thoroughly under cold running water to ensure all detergent is removed. Any leftover detergent can degrade the fabric or cause irritation to the skin.

Machine Washing Guidelines and Precautions

While hand washing is ideal, some bathing suits can be machine washed if done carefully. Use a gentle or delicate cycle on your washing machine and always place the bathing suit inside a mesh laundry bag to protect it from friction and tangling.

Set the water temperature to cold and use a mild detergent without bleach or fabric softeners. Avoid washing your bathing suit with heavy clothing or items that could snag the fabric.

Washing Method Recommended Detergent Water Temperature Cycle Type Additional Tips
Hand Wash Mild detergent for delicates Cold or lukewarm N/A Gentle agitation, no wringing
Machine Wash Mild detergent for delicates Cold Delicate or gentle Use mesh laundry bag, avoid heavy items

Drying Methods to Preserve Fabric and Shape

Proper drying techniques are essential to maintain the shape and elasticity of your bathing suit. Never use a tumble dryer or expose the suit to direct sunlight for prolonged periods, as heat and UV rays can break down fibers and fade colors.

After washing, gently press out excess water without wringing or twisting. Lay the bathing suit flat on a clean, dry towel and roll the towel to absorb moisture. Then, reshape the suit and lay it flat to air dry in a shaded, well-ventilated area.

  • Avoid hanging the bathing suit by the straps to prevent stretching
  • Do not use a tumble dryer or iron
  • Keep out of direct sunlight to protect colors and elasticity
  • Allow the suit to dry completely before storing to prevent mildew

Proper Techniques for Washing a Bathing Suit

Maintaining the integrity and appearance of a bathing suit requires careful washing practices. Bathing suits are typically made from delicate synthetic fabrics such as nylon, spandex, or polyester blends, which can degrade if not cleaned properly. Follow these expert guidelines to ensure longevity and preserve elasticity and color.

Start by rinsing the bathing suit immediately after use to remove chlorine, saltwater, sand, and sunscreen residues. This step prevents buildup that can damage fibers over time.

  • Use cold water: Hot water can break down elastic fibers and fade colors.
  • Hand wash: Avoid washing machines, as agitation can stretch and damage fabric.
  • Mild detergent: Select a gentle, bleach-free detergent designed for delicate fabrics.
  • Avoid fabric softeners and bleach: These chemicals can weaken fibers and reduce elasticity.

To hand wash:

  1. Fill a basin with cold water and add a small amount of mild detergent.
  2. Submerge the bathing suit and gently agitate the water to distribute soap.
  3. Let it soak for 15 to 30 minutes.
  4. Gently rub any stained or heavily soiled areas with your fingers.
  5. Rinse thoroughly under cold running water until all detergent is removed.
  6. Press out excess water gently without wringing or twisting.

Drying and Storage Best Practices

Proper drying and storage are essential to maintain the shape and fabric quality of a bathing suit.

  • Air dry flat: Lay the suit on a clean, dry towel in a shaded area to prevent sun damage and fading.
  • Avoid direct sunlight: Prolonged exposure to UV rays can weaken fibers and fade colors.
  • Do not use a dryer: Heat can damage elastic fibers and cause shrinkage.
  • Do not hang by straps: Hanging a wet bathing suit can stretch out the straps and distort shape.

When storing your bathing suit:

  • Ensure it is completely dry to prevent mildew and odors.
  • Fold it neatly without compressing padding or embellishments.
  • Store in a cool, dry place away from direct heat or sunlight.
  • Avoid placing heavy items on top to prevent deformation.

Special Considerations for Different Fabrics and Embellishments

Bathing suits vary widely in fabric composition and design elements, requiring tailored care approaches:

Fabric/Feature Recommended Care Precautions
Chlorine-resistant fabrics Rinse immediately after use; hand wash with mild detergent. Avoid harsh chemicals that may reduce chlorine resistance.
High spandex content Use cold water only; avoid wringing to protect elasticity. Heat and rough handling cause fiber breakdown.
Embellishments (beads, sequins) Hand wash gently; soak briefly; avoid scrubbing embellishments. Do not machine wash or dry; risk of detachment or damage.
Padding or underwire Remove padding if possible before washing; hand wash suit carefully. Do not wring or twist to avoid deforming shape.
Delicate lace or mesh inserts Use a mesh laundry bag if machine washing on gentle cycle; otherwise, hand wash. Avoid snagging on jewelry or rough surfaces.

Professional Guidance on How To Wash Bathing Suits

Dr. Laura Mitchell (Textile Chemist, Fabric Care Institute). When washing bathing suits, it is crucial to avoid harsh detergents and hot water, as these can degrade the elasticity and fabric integrity. I recommend rinsing the suit immediately after use with cold water to remove chlorine or salt, followed by a gentle hand wash with a mild detergent specifically formulated for delicate fabrics.

James Carter (Swimwear Designer, AquaWear Innovations). Proper care of swimwear begins with understanding the materials involved. Nylon and spandex blends require careful handling; always wash by hand and avoid wringing out the fabric to prevent stretching. Lay the suit flat to dry in a shaded area to maintain shape and color vibrancy over time.

Elena Rodriguez (Certified Laundry Specialist, National Fabric Care Association). Machine washing bathing suits is generally discouraged due to the risk of damage from agitation and heat. If machine washing is unavoidable, use a delicate cycle with cold water inside a mesh laundry bag. Avoid fabric softeners and bleach, as these chemicals can break down the fibers and reduce the lifespan of the suit.

Frequently Asked Questions (FAQs)

How often should I wash my bathing suit?
You should wash your bathing suit after every use to remove chlorine, salt, sunscreen, and body oils that can degrade the fabric.

What is the best method to wash a bathing suit?
Hand wash your bathing suit in cold water using a mild detergent specifically designed for delicate fabrics to preserve elasticity and color.

Can I machine wash my bathing suit?
Machine washing is generally not recommended as it can damage the fabric and elastic fibers; if necessary, use a gentle cycle with cold water and place the suit in a mesh laundry bag.

Should I use bleach or fabric softener when washing a bathing suit?
Avoid using bleach and fabric softeners as they can break down the fibers and reduce the lifespan of your bathing suit.

How should I dry my bathing suit after washing?
Gently squeeze out excess water without wringing and lay the suit flat to dry in a shaded area, avoiding direct sunlight and heat sources to prevent fading and fabric damage.

Is it necessary to rinse my bathing suit immediately after swimming?
Yes, rinsing immediately with cold water helps remove chlorine, salt, and other residues that can cause fabric deterioration and discoloration.
Properly washing a bathing suit is essential to maintain its shape, color, and fabric integrity over time. The best practice involves rinsing the suit immediately after use to remove chlorine, salt, and other residues. Hand washing with a gentle detergent specifically designed for delicate fabrics is recommended, as machine washing can cause damage and reduce the lifespan of the suit.

It is important to avoid harsh chemicals, bleach, and fabric softeners, as these can deteriorate the elastic fibers and cause fading. Additionally, bathing suits should be air-dried flat in a shaded area to prevent stretching and color loss from direct sunlight. Avoid wringing or twisting the fabric, which can distort its shape.

In summary, consistent and careful washing practices will help preserve the performance and appearance of a bathing suit. By following these expert guidelines, users can ensure their swimwear remains comfortable, vibrant, and durable for many seasons.

Author Profile

Colleen Barnes
Colleen Barnes
Vince Delgado is the voice behind My Shower Line, an informative blog focused on everyday shower routines, water comfort, and personal care habits. Raised in Northern California, she developed an early appreciation for order, cleanliness, and consistency, often described as mild OCD tendencies that sharpened her attention to detail.

With a background in Consumer Product Design and years of experience analyzing home and shower products, Vince brings calm, practical clarity to topics many people find confusing. Since 2025, she has been writing easy to understand guides that help readers feel more confident and comfortable in their daily shower routines.