Skip links
Swimsuits

How to Wash a Swimsuit: Keep Your Swimwear Like New

Your favorite swimsuit takes a beating every time you hit the pool or beach. Between chlorine, saltwater, sunscreen, and sand, your swimwear faces harsh conditions that can quickly break down delicate fabrics and fade vibrant colors. Most people don’t realize that tossing their suit in the regular wash can actually cause more damage than good.

Proper swimsuit care isn’t just about keeping it clean – it’s about preserving the elasticity, shape, and color that make your suit look and feel great. The wrong washing method can stretch out straps, fade prints, and deteriorate the fabric’s ability to bounce back after wear.

Learning how to wash your swimsuit correctly will extend its lifespan significantly and keep it looking fresh season after season. With the right technique and a few simple steps, you’ll protect your investment and ensure your swimwear stays in peak condition.

How Often Should You Wash Your Swimsuit?

Wash frequency depends on your activity level and exposure to damaging elements. High-intensity activities like swimming, surfing, or beach volleyball require washing after every use. Sunbathing with occasional dips allows 2-3 wears between washes.

Wash After Every Use for Active Swimming

Active swimmers expose their suits to maximum damage from perspiration, chlorinated water, and sunscreen. Spandex and synthetic fabrics break down rapidly when combined with these corrosive elements. Competition swimmers and daily pool users should wash immediately after each session to prevent fabric deterioration.

Casual Wear Allows Multiple Uses

Light pool activities and sunbathing create less stress on swimsuit materials. Cool water rinses remove salt and chlorine between wears, extending fabric life. Replace washing with thorough rinsing for 2-3 casual uses before requiring detergent cleaning.

Activity-Based Washing Schedule

Activity Level Washing Frequency Rinse Requirements
Competition swimming After every use Immediate cool water rinse
Daily pool workouts After every use Pre and post-swim rinse
Beach volleyball After every use Fresh water rinse within 1 hour
Casual sunbathing Every 2-3 wears Cool water rinse after each wear
Occasional swimming Every 2-3 wears Thorough rinse after pool exposure

Environmental Factors Affect Frequency

Chlorinated pools require more frequent washing than natural bodies of water. Pool chemicals create a corrosive environment that breaks down elastane fibers within 2-4 hours of exposure. Saltwater environments demand immediate rinsing but allow longer periods between detergent washes.

Sunscreen application increases washing frequency regardless of activity level. SPF products contain oils that penetrate swimsuit fibers and attract bacteria growth. Remove sunscreen residue through proper washing every 2 uses maximum.

Washing Swimsuits

Proper washing techniques preserve swimsuit fabric integrity and extend garment lifespan. Hand washing with cold water represents the gentlest method, while machine washing requires specific precautions to prevent damage.

Choose the Best Detergent to Wash Your Swimsuit

Mild detergents or gentle liquid soaps protect swimsuit fibers from harsh chemical damage. Natural castile soap and enzyme-free formulations like delicate wash products work effectively without compromising fabric elasticity.

Avoid bleach, fabric softeners, and scented laundry boosters completely. These products contain chemicals that break down synthetic fibers, cause color fading, and reduce water-repelling properties. Baby shampoo serves as an emergency alternative, though specialized swimwear detergents provide superior cleaning power for chlorine and sunscreen residue.

Removing Stains and Odors from Bathing Suits

Adding ½ cup baking soda to wash water neutralizes chlorine odors and chemical residue effectively. For stubborn stains, pretreat affected areas with liquid detergent before washing.

Oil-based stains from sunscreen require immediate attention. Apply liquid detergent directly to stained areas and wash with the warmest water the garment tolerates – typically lukewarm for swimwear. White vinegar mixed with equal parts water creates an effective pretreatment solution for persistent stains.

Iron deposits from hard water react with sunscreen ingredients to create rust-colored stains. Address these immediately with gentle detergent and cool water to prevent permanent discoloration.

What Do You Need to Wash Your Swimsuit?

Essential supplies for proper swimsuit washing include:

  • Mild detergent or gentle liquid soap
  • Basin or sink with lukewarm to cool water capacity
  • Mesh laundry bag for machine washing protection
  • Clean towel or drying rack for air drying
  • Fine mesh laundry bags for delicate items

Optional items enhance the washing process: white vinegar for odor removal, baking soda for chemical neutralization, and lint-free towels for optimal drying conditions.

How To Hand Wash Swimsuits

Fill a sink or basin with cold or lukewarm water to prevent fabric stretching and color fading. Add 1 tablespoon of mild detergent and mix thoroughly.

Submerge your swimsuit and gently agitate by hand for 30 seconds. Allow the garment to soak for 10-30 minutes, enabling the detergent to break down chlorine, salt, and body oils. Avoid harsh scrubbing or rubbing motions that stress elastic fibers.

Drain soapy water completely and rinse thoroughly with cold water until no suds remain visible. Gently squeeze excess water without wringing or twisting the fabric. Press the swimsuit against the basin walls to remove additional moisture.

Place the swimsuit on a clean towel and roll gently to absorb remaining water. Lay flat to air dry completely away from direct sunlight and heat sources.

How to Machine Wash Your Bathing Suit

Rinse swimsuits with cold water immediately after use to remove chlorine, salt, and body oils before machine washing. Place swimsuits in mesh laundry bags to protect elasticity and prevent strap tangling.

Set your washing machine to delicate cycle with cold water exclusively. Add a small amount of mild detergent – approximately half the recommended amount for regular loads. Never wash swimsuits with regular clothing items that can cause snagging or damage.

Secure all hook-and-loop closures on swim trunks before washing. Protect drawstrings and delicate linings by ensuring proper mesh bag placement. Remove swimsuits immediately after the cycle completes to prevent wrinkles and fabric stress.

Common Washing Mistakes

Using harsh detergents, bleach, or fabric softeners represents the most damaging mistake for swimwear. These products weaken synthetic fibers and cause permanent color loss.

Wringing or twisting wet swimsuits stretches elastic beyond recovery. The agitation destroys fabric structure and compromises fit. Machine drying with heat breaks down spandex and elastane fibers, reducing stretch capacity by up to 50%.

Washing swimsuits too frequently without proper rinsing accelerates fabric breakdown. Conversely, allowing salt, chlorine, and sunscreen to remain on fabric between wears creates permanent damage. Washing with regular clothes increases friction damage and chemical exposure from stronger detergents.

Direct sunlight exposure during drying causes UV damage and color fading. Store wet swimsuits in closed containers without proper ventilation encourages mold and mildew growth.

Drying Swimsuits

Air drying maintains swimsuit elasticity and prevents fabric degradation that occurs with heat exposure. Always lay your freshly washed swimsuit flat on a clean towel to absorb excess water before transitioning to the final drying phase.

Air Drying Methods

Remove your swimsuit from the washing process and gently squeeze out excess water without wringing the fabric. Laying flat on towels provides the safest drying method for maintaining shape and preventing stretching. Position your swimsuit on a dry towel in a well-ventilated area away from direct sunlight.

Hanging wet swimsuits can cause permanent stretching in the straps and body panels. Wait until most moisture has been absorbed by the towel before hanging your swimsuit. Use padded hangers or hang by the side seams rather than the straps to distribute weight evenly.

Drying Location Requirements

Choose indoor locations with good air circulation for optimal drying conditions. Shade drying preserves colors and fabric integrity while preventing UV damage that causes fading and fiber breakdown. Avoid basements or enclosed spaces without ventilation that promote mold growth.

Drying Location Benefits Risks
Shaded outdoor area Natural air circulation, quick drying Weather exposure
Indoor ventilated room Controlled environment, no UV exposure Slower drying time
Bathroom with fan High air circulation, private space Humidity concerns
Direct sunlight Fast drying Color fading, fabric damage

Heat Exposure Dangers

Never use clothes dryers or heating devices as temperatures above 85°F cause elastic fibers to break down permanently. Heat exposure from direct sunlight creates similar damage by degrading spandex and lycra components that give swimsuits their stretch.

Radiators and heating vents also pose risks to swimsuit fabric integrity. UV rays fade colors and weaken fibers through photodegradation that makes fabric brittle over time. Keep your swimsuit at least 3 feet away from any heat sources during the drying process.

Drying Time Expectations

Flat drying typically takes 4-6 hours in well-ventilated indoor spaces with normal humidity levels. Thicker swimsuit materials like neoprene or heavily lined suits require 8-12 hours for complete moisture removal.

Check for dampness in seam areas and padding before storing your swimsuit. Completely dry swimsuits prevent bacterial growth and musty odors that develop in moist environments. Touch all fabric areas including elastic bands and lining to ensure no moisture remains.

How To Store Bathing Suits

Store your swimsuit in a cool, dry location away from heat sources and moisture to prevent fabric degradation and bacterial growth. Once your bathing suit reaches complete dryness following proper air-drying techniques, choose an appropriate storage method to maintain its shape and elasticity.

Choose the Right Storage Location

Select storage areas that maintain consistent temperatures below 75°F with low humidity levels. Avoid hot attics, damp basements, and areas exposed to direct sunlight, as these environments accelerate fabric breakdown and color fading.

Optimal storage locations include:

  • Bedroom drawers with ventilation
  • Climate-controlled closets
  • Linen closets away from heating vents
  • Cool pantry areas with consistent airflow

Use Proper Storage Containers

Place your completely dry swimsuit in a mesh laundry bag or breathable fabric pouch to allow air circulation while protecting against dust and pests. Mesh bags prevent moisture buildup that occurs in sealed plastic containers, reducing mildew formation by 80% according to textile preservation studies.

Avoid these storage mistakes:

  • Plastic bags that trap moisture
  • Sealed containers without ventilation
  • Storage bins exposed to temperature fluctuations
  • Areas near radiators or heating systems

Store Swimsuits Flat or Lightly Folded

Lay your bathing suit flat in drawers alongside other delicate garments to prevent stretching and maintain original shape. Folding swimsuits creates minimal stress on elastic fibers compared to hanging storage, which can cause permanent elongation over time.

For multiple swimsuits, separate each piece with tissue paper or breathable fabric dividers to prevent color transfer and fabric snagging.

Prepare Swimsuits for Long-Term Storage

Wash your swimsuit thoroughly before seasonal storage to remove all chlorine, salt, oils, and bacteria that cause fabric deterioration. Complete the drying process entirely before storage, as even minimal moisture content creates conditions for mold growth within 48-72 hours.

Pre-storage checklist:

  • Confirm 100% dryness by touching all seam areas
  • Check for remaining stains or odors
  • Inspect elastic areas for signs of wear
  • Ensure fabric returns to original texture

Store swimsuits in breathable garment bags when transitioning between seasons, maintaining the same cool, dry environment principles year-round to preserve fabric integrity and extend wearable lifespan by 2-3 seasons.

Other Tips for Maintaining Your Swimsuit

Rinse your swimsuit immediately after swimming to remove chlorine, salt, and body oils before they penetrate the fabric fibers. Cool water removes 85% of damaging substances when applied within 30 minutes of exposure. Adding 1 cup of white vinegar to your rinse water neutralizes chlorine residue and eliminates lingering chemical odors.

Apply sunscreen 15 minutes before putting on your swimsuit to prevent oil-based stains from setting into the fabric. Oil-based sunscreens create permanent stains that require pre-treatment with liquid detergent before washing. Zinc oxide sunscreens cause less fabric damage than chemical-based alternatives.

Rotate between multiple swimsuits to extend their lifespan by allowing each suit 24-48 hours to fully dry and recover its elasticity between uses. Professional swimmers replace competition suits every 3-4 months with daily use, while casual swimmers can maintain suits for 2-3 years with proper rotation.

Check care labels regularly for specific washing instructions that vary by material composition. Delicate mesh fabrics require hand washing exclusively, while some polyester blends tolerate gentle machine cycles. Spandex content above 20% demands cold water washing to preserve stretch recovery.

Pre-treat stains before washing using these targeted methods:

  • Sunscreen stains: Apply liquid detergent directly and let sit for 10 minutes
  • Rust-colored stains: Mix baking soda with water to create a paste
  • Chlorine discoloration: Soak in cold water with 2 tablespoons of white vinegar

Avoid fabric softeners and scented laundry boosters as they coat swimsuit fibers with chemicals that reduce elasticity by up to 40% over time. These products also trap bacteria and create buildup that causes premature fabric breakdown.

Replace swimsuits when elastic degradation occurs, typically indicated by loose fit around the bust, hips, or waistline that doesn’t recover after washing. Faded colors and thinning fabric also signal the need for replacement to maintain proper coverage and support.

Store swimsuits with cedar blocks or lavender sachets to deter insects without using chemical mothballs that damage synthetic fibers. Natural deterrents maintain fabric integrity while protecting against pest damage during long-term storage.

Conclusion

Taking care of your swimsuit doesn’t have to be complicated when you follow the right steps. By hand washing with cold water and mild detergent you’ll preserve the fabric’s elasticity and vibrant colors for seasons to come.

Remember that immediate rinsing after each swim makes the biggest difference in preventing damage from chlorine salt and sunscreen. Skip the washing machine heat and harsh chemicals that can destroy your swimwear’s shape and performance.

With proper washing drying and storage techniques you’re investing in the longevity of your swimsuit collection. Your future self will thank you when your favorite swimwear still looks and feels like new after countless beach days and pool sessions.

Clotheslyne Washes Swimsuits, too!

Caring for specialized attire, particularly swim suits that need gentle care, requires precise handling. Clotheslyne provides a hassle-free solution with free pick-up and delivery laundry services across select areas including New York, Nevada, New Jersey, North Carolina, Rhode Island, Connecticut, Alaska, and Massachusetts. Our Clotheslyners are experienced in managing delicate items, ensuring your swim suits are thoroughly washed, dried, and returned in pristine condition. Trust Clotheslyne to preserve the vibrant colors and elasticity of your swimwear, giving you more time to enjoy the water and sun. With Clotheslyne, you benefit from a community ally who values the importance of detailed care for your leisure and sportswear.

To use Clotheslyne, download the iOS Apple App or Google Play Store Android app to schedule your laundry pick up.

You can also schedule your laundry pick up through our web portal.

Fill up a tall kitchen bag full of clothes. A Clotheslyner in your community will pick it up and deliver it back to you washed, dried, and folded in 48 hours. It’s that simple.

Frequently Asked Questions

How often should I wash my swimsuit?

The frequency depends on your activity level. Active swimmers who use pools daily should wash their swimsuits after every use due to chlorine, sweat, and sunscreen exposure. Casual swimmers can wash their suits every 2-3 uses, provided they rinse thoroughly with cool water between wears. Always wash immediately if exposed to sunscreen, as oils penetrate fibers and promote bacteria growth.

Can you put your swimsuit in the washing machine?

Yes, swimsuits can be machine washed if treated as delicate garments. Use the delicate cycle with cold water and place the swimsuit in a mesh laundry bag for protection. However, hand washing is gentler and preferred for extending swimsuit lifespan. Always check the care label first for specific manufacturer instructions.

What is the best way to wash swimwear?

Hand washing with cold water is the gentlest method. Use mild detergent or gentle liquid soap, avoiding bleach, fabric softeners, and scented boosters. Rinse immediately after swimming, then wash in a basin with cold water. For machine washing, use the delicate cycle, cold water, and a mesh laundry bag.

Can bathing suits go in the dryer?

No, never put swimsuits in the dryer. Heat damages elastic fibers and can cause permanent fabric degradation. Air dry only by laying flat on a clean towel away from direct sunlight. Avoid hanging wet swimsuits as this can cause stretching. Once mostly dry, you can hang using padded hangers or by side seams.

How do you clean smelly swimsuits?

Add half a cup of baking soda to cold water and soak the swimsuit to neutralize odors and brighten colors. For oil-based stains from sunscreen, pre-treat with liquid detergent before washing. Rust-colored stains from hard water can be treated with specialized stain removers. Always rinse thoroughly after treating.

What detergent should I use for swimsuits?

Use mild, gentle detergents or liquid soaps specifically designed for delicate fabrics. Avoid harsh detergents, bleach, fabric softeners, and scented laundry boosters as these can damage swimsuit fibers and cause color fading. Check the care label for any specific detergent recommendations based on the material composition.

How should I dry my swimsuit properly?

Lay the swimsuit flat on a clean towel in a well-ventilated area away from direct sunlight and heat sources. The towel absorbs excess moisture while maintaining the suit’s shape. Drying typically takes 4-6 hours, with thicker materials requiring longer. Ensure complete dryness before storage to prevent bacterial growth and musty odors.

Where should I store my swimsuit?

Store swimsuits in a cool, dry location with temperatures below 75°F and low humidity. Use breathable storage containers like mesh laundry bags that allow air circulation. Store flat or lightly folded to maintain shape. Avoid plastic bags or sealed containers that trap moisture, and ensure the swimsuit is completely clean and dry before storage.

Should I rinse my swimsuit immediately after swimming?

Yes, always rinse your swimsuit with cool water immediately after swimming to remove chlorine, saltwater, sand, and sunscreen residue. These substances can damage the fabric if left on the suit. Even if you don’t wash immediately, rinsing helps prevent damage and extends the time between necessary washes.

How can I make my swimsuit last longer?

Rotate between multiple swimsuits to reduce wear, apply sunscreen 15 minutes before putting on your suit, rinse immediately after use, and follow proper washing and drying techniques. Store properly in breathable containers, avoid heat exposure, and never wring or twist wet swimsuits. Following care label instructions also helps maintain fabric integrity.