How to Make Your Chlorine Resistant Swimwear Durable

How to Make Your Chlorine Resistant Swimwear Durable

Summer is finally here, which means it's time to hit the beach! But what if you want to swim in a pool? That can be tricky when chlorine turns your favourite swimsuit into funky colours. 

If you are looking for ways to make your chlorine resistant swimwear more durable, this blog post will tell you everything you need to know about how to do that.

Swimming is a fun activity that everyone can enjoy. Whether you're enjoying the pool with your kids or spending time with friends at the beach, there's something about swimming that makes us feel like we're on vacation. 

However, after time in the water, chlorine wears down swimwear and makes it less resistant to fading and sagging. So how do you keep your chlorine resistant swimwear durable? Here are some tips!

Do you have a chlorine resistant swimsuit? Chlorine is one of the most common chemicals used in pools and can damage your suit. But, do not fear; we will give you tips on how to make your chlorine resistant swimwear durable! 

Do you have a favourite swimsuit that is made of chlorine resistant fabric? You might be surprised to find out how easy it can be to make your suit last longer. The first step is to identify the type of material your suit is made from.

Swimsuits are typically either nylon, polyester, or spandex, and each one has different maintenance needs. So next, check the care instructions for your specific swimsuit and look out for any special notes about when not to wash. 

Finally, follow these three steps: rinse in cool water after every use; add a quarter cup of white vinegar into the rinse cycle (or 1/2 cup bleach); run through an extra rinse cycle before hanging up to dry.

If you are tired of buying new swimsuits every time chlorine comes in contact with the fabric, then this blog post is for you. It will show you how to make your chlorine resistant swimwear durable and last as long as possible. 

The first thing that we suggest doing is buying a suit that has been pre-treated. These suits use a "saltwater wash" process, which washes away any chemical residue from the manufacturing process and protects against future damage. 

The next step would be to rinse your suit before each use in freshwater but never dry it out on high heat or leave it sitting around wet without drying because these things can cause mould growth which is not good for anyone!

The best way to ensure that your chlorine resistant swimwear is durable and lasts as long as possible is to keep it clean. The more often you wash, the less likely it will be for bacteria or mould to grow on your suit. Wear your suit at least once a week and rinse off after every use. 

Also, make sure not to leave the suit in direct sunlight for too long because this can cause fading and damage. Finally, store your suit in an area with good airflow so that moisture doesn't build-up, which would lead to mould growth. 

Now read on for our tips and tricks on how to keep clothes from getting ruined by chlorine!

Does Chlorine-Proof Fabric Exist?

Soaking in chlorinated water may subsequently cause the colours to fade over time. Chlorine is a potent chemical. All fabrics are adversely affected when they come into contact with it. 

Some floating pool bean bags comprise solution-dyed acrylic and olefin. These are some of the most chlorine-resistant fabrics available. But is there a chlorine proof fabric?

1. Chlorine in Swimming Pools

Outdoor pools are subject to all the forces of nature. The wind blows dirt and grime in them. Unless you treat your pool water, bacteria, fungi, and other undesirable life forms will begin to grow. 

These quickly turn the swimming pool into a cesspool. Also, all the germs carried on and in the human body wash into the water. Without some form of treatment, a pool will quickly spread infectious diseases.

Swimming pools can be made sterile by adding a specific saline solution. However, saline is a costly option, usually only used in upscale fitness centres. Therefore, the most popular method of sterilisation is to add a form of chlorine. 

Chlorine is the primary ingredient in bleach. But, unfortunately, chlorine has the side effect of whitening colour fabrics and eventually dissolving the threads.

Because chlorine is effective at killing germs, it exists in most water that goes through municipal water plants. However, the amount used in tap water is meagre. 

Otherwise, it would cause problems of its own, including the possibility of death. The amount of chlorine used in swimming pools is much less than that used for washing clothes but higher than that in drinking water.

When added to water, the measure for chlorine is parts per million (ppm). Thus, PPM is the ratio of chlorine to 1 million units of water. 

When using the standard guidelines for adding bleach to a top-loading washing machine, the amount of chlorine is just over 80 ppm, while the amount of chlorine in a swimming pool ranges from 1 ppm to 10 ppm.

2. The Effects of Chlorine on Fabric

One of the most well-known effects of chlorine is that it removes stains from white clothing. But it also has a bleaching effect on nearly all types of colour fabric. 

When the concentration of chlorine is more than 80 ppm, the reaction is almost immediate. But in lower levels, the fading or whitening is gradual and does not become apparent until after multiple exposures over some time.

You may have noticed that the colours will fade even without bleach after several years of washing clothes. While there are other contributing factors, this is because of the small amount of chlorine in the water. 

You may also have witnessed a new bathing suit will noticeably fade after only one season of swimming in a pool. The bleaching can be faster in swimming pools if the concentration of chlorine is higher.

Chlorine has the additional side effect of reducing the integrity of the fabric. The chlorine slowly eats away at the fibres, making them thinner and thinner. Eventually, the threads become so small and weak they tear under regular use. 

Thread degradation due to chlorinated water is worse in natural fibres like cotton. While chlorine is an excellent solution for protecting the health of swimmers, it is not so great when it comes to fabric. 

A few types of chlorine-resistant materials are available. But none of them is chlorine-proof. All fabrics will eventually succumb to the damaging effects of chlorine.

3. The Best Fabric for Pools

Even though every natural and human-made fabric can be affected by chlorine, some are more resistant to bleaching than others are. The worst of the bunch, however, is cotton. 

Cotton is soft, comfortable and affordable. However, its use for swimwear or products that are for use in or near swimming pools is rare. Chlorine will bleach and degrade cotton fabric quickly.

Lycra and spandex are human-made fabrics found in sportswear. But these are just as bad as cotton in chlorinated water because chlorine destroys the elasticity of these polyurethane-based materials. As a result, making them brittle and causes them to lose their shape.

Nylon stands up to chlorine much better than most other fabrics do, and it dries very quickly. However, the combination of chlorinated water and sunlight will still cause the colour of this fabric to fade within one year of regular use in swimming pools.

The best fabric for swimming pools is solution-dyed acrylic or olefin. These two fabrics feature exclusively in our floating pool bean bags. Polyester is very hydrophobic, which means that it absorbs very little water. 

Most of the water fails to penetrate the fibres, helping to keep chlorine away from them. However, as mentioned above, no fabric is completely waterproof or fully chlorine-proof. Furthermore, chlorinated water and sunshine will eventually cause the colours to fade even in nylon and polyester. 

Those fabrics with a Colour Fastness to Chlorinated Water of Grade 5 are the closest you can get to a chlorine proof material.

4. Fabric Care for Chlorine Pools

Because chlorine harms every type of fabric, including polyester, it is best to keep floating pool bean bags out of the water when they are not in use. 

Pool bean bags should sit in chlorinated pool water only during use. Remove your pool bean bag immediately upon exiting the pool. By doing this, you will significantly extend the life of the outer fabric.

For additional protection, we recommend you cover the bean bag with a piece of thick, water-resistant fabric such as a tarp. Alternatively, store it indoors to protect it from the elements. The impact of rain and the sun's ultraviolet rays can be just as damaging as chlorine is.

You can keep colours sharp and reduce fading can by rinsing them in clean water immediately after removing them from the pool. Some people go even further by removing the cover and washing it with a small amount of non-chlorinated detergent. 

Having a removable inner liner is advantageous for washing your bean bag. But you will always want to follow any cleaning instructions on the label or include them in the product when purchased.

Finally, a few specialised products are available for sale that can neutralise chlorine, removing any remnants. These are not necessary except in cases of extreme exposure. But some people swear by their effectiveness even with regular use. 

The products usually come in powdered form and are mixed with water. The fabric is then soaked in the mixture as directed. The two main ingredients to look for are sodium thiosulfate and sodium metabisulfite. However, these two chemicals are hazardous.

How do you make a swimsuit chlorine resistant?

Letting go of the plus size swimwear that has been your ardent beach companion for many years is not a great feeling. 

Swimsuits are expensive, and finding the perfect one is not an easy task. Swimwear may be discarded for many reasons. With time they fade out in colour, lose shape, become ill-fitting and start to look tatty.

Swimsuits made from lycra perish from the harsh effects of chlorinated pools and sun exposure.  Just like leaving an elastic band in the sun, the thin rubber strips woven into the fabric of lycra swimsuits become brittle and break, causing the swimsuit to lose its shape and elasticity.

Chlorine resistant plus size swimwear is the smart choice as the fabric is not made with elastic, so that it will last much longer than the standard lycra swimsuit.


To avoid the loss of colour on textiles when using chlorine products, it is necessary to control the pH of the washing bath and its temperature. 

On the other hand, the fibre of the textile also has an important role; with cotton, it is possible to reduce colour damage with an alkaline pH of 9 to 9.5. For wool or polyester, it doesn't work. There are bleaching agents specially dedicated to coloured linen and delicate fibres.

The only way to avoid the loss of colour is to neutralise the chlorine action on the textile at the end of the bath. Simply with a lot of water or ascorbic acid, sodium thiosulfate, sodium sulphite or sodium bisulphite.

Swimming suit producers such as Speedo have a new range of fibres that are more chlorine resistant (Speedo endurance +), but in the end, you only delay the end life of the fabric.

Just use cool water and a mild detergent; no bleach or Woolite™. Then tumble dry on low. Please do not wrap your suit in a towel. Use a clean bag instead, as our polyester thread will pick up the lint from a towel.

Also, what is the best chlorine resistant swimwear? We love the silky smooth feel of our nylon/Lycra® line of swimwear. 

Some use the finest Xtra Life Lycra® for the best chlorine resistance so that when you do go in a chlorinated pool (or any pool that has chemicals), the Lycra® will last longer. Most swimwear on the Market today is chlorine resistant.

Considering this, does chlorine ruin bathing suits?

Chlorine will remove all dyes from the swimwear. However, chlorine is a strong chemical that can bleach out the swimwear colour and damage its fabric; especially if it is made of nylon/lycra, the swimwear will become loose and saggy if you wear it often in the chemical treated pools.

Chlorine resistant swimwear, however, does have elastic in the legs and arm openings, so taking care of your swimsuit is important to prolong the life of your swimsuit.

Below are some effective tips that can help swimmers prolong the life of their favourite swimwear and size swimwear in Perth with ease. 

1. Treat the Fabric before Your First Use

Chlorine is the main culprit for destroying the swimsuit fabric. A simple exercise before using the swimsuit can help fight chlorine effectively. Soak the new swimsuit in water with a few drops of white vinegar, followed by dipping it into plain cold water for a few minutes. 

The vinegar helps the colours of the fabric to set it well, and the fibres become water-laden and less prone to absorbing the perilous chlorine.

2. Wash After Every Use

The swimsuit is often ignored after use. As a result, people overlook the importance of cleaning their swimsuits while enjoying their holiday. 

The sun, chlorine residue and other elements like sunscreen lotions, moisturising creams and tan sprays can adversely affect the colour and look of the swimsuit. Therefore it is very important to rinse the swimsuit immediately after every use. 

Leaving the plus size swimwear unattended for a long time with all these harmful substances makes it the breeding ground for bacteria and other harmful organisms. This, in turn, affects the fabric as well as the skin.  

3. Use the Right Washing Technique

Chlorine Resistant Swimwear must always be hand washed. Use a mild soap or a shampoo and gently clean using cold water. Regular swimmers can also use a few drops of dechlorinator to soak the swimwear after washing.  

4. Air-Dry Your Swimwear

After the chlorine resistant swimwear is rinsed completely, it must be only air-dried in the shade. Exposing the swimwear to direct sunlight or wringing it out forcefully must be avoided. 

It is better to layout the suit than hang it, as the latter might cause too much stretching. Ensure the swimsuit is completely dried off before putting it back into the wardrobe.

5. How can I keep my swimsuit in place?

When you try a suit on, be sure to bend over, stretch up on your toes and sit down with the suit on to test the elastic banding's ability to stay in place. Keep bathing suits from riding up by taking good care of them. Always rinse them after use and wash them gently by hand before laying them out to dry.

6. Choose Chlorine Resistant Fabrics

Plus size swimwear in Australia comes in different fabrics such as polyester, spandex, nylon, etc. 

Regular swimmers can choose fabrics with a high density of polyester and no lycra or elastane as it contributes to the better longevity of the swimsuit. However, chlorine resistant swimwear is recommended for competitive swimmers.


1. How long should a swimsuit last?

Speedo has an endurance line of very durable swimsuits. According to users, they last between 4 months to a year or longer! Of course, this varies per person as the wear of the swimsuit depends on the person, care and factors mentioned above.

2. How long should you keep a bathing suit?

On average, they can last for more than six months, but certain things are to be considered before determining the useful life of bathing suits. If you use your bathing suit daily, wear and tear are natural, and quality deteriorates over time.

3. Should you wash your swimsuit after every use?

Ensure to wash your swimsuit after every wear—even if you don't go in the water. Chlorine is harsher on swimwear fabrics than fresh and saltwater and can leave bright colours especially susceptible to fading. But don't throw your swimsuit in the washing machine or use just any old detergent.

4. Which swimsuit material lasts longest?

For those who demand the longest life and most consistent fit-out of their swimwear, we recommend suits made of 100% polyester. Polyester is extremely chlorine resistant and colourfast, and you can usually expect a polyester swimsuit to last at least 2-3 times longer than a Lycra suit.

5. Why do bathing suits lose elasticity?

A swimwear should function properly for several months in contact with the pool water that contains significant amounts of oxidative chemicals (chlorine, others). Losing elasticity indicates a kind of degradation in the fabric, like chemical or thermal.

6. Why did my swimsuit fade?

Both chlorine and sunlight can bleach fabrics, and strong detergents can break down the colour, resulting in colour loss over time. By following these steps, you can keep a bathing suit from fading, which in turn helps it last season after season.

7. Is elastane chlorine resistant?

Contain no elastane fibres. Some suits are called chlorine resistant because the Lycra® is specially developed to last longer than conventional swimwear. These fabrics include Xtra Life Lycra®.

8. How can I make my swimsuit last longer?

Hot water and chlorine are hard on swimsuits. Swimsuits aren't cheap, and a perfect one is hard to find.

To keep your suit looking good for years to come, care for it using these eight tips from laundry pros:

  • Rinse ASAP.
  • Hand Wash.
  • Soap Up.
  • Dry Off.
  • Rotate Suits.
  • Keep Cool.

9. Can spandex be used for swimming?

Typically, Nylon/Spandex and Polyester/Spandex are great options for swim fabrics. Typically, swimsuits or shorts have some stretch, but spandex is known to degrade over time in the water. 

Fabrics can now have chlorine resistance to make a superior swim stretch fabric that can maintain shape after many uses in the water!

10. What does chlorine do to clothes?

High concentrations of chlorine do not only spell trouble for your body – chlorine will act as a bleaching agent and will cause your clothes to fade over time if the water in your washer contains chlorine. Chlorine also reduces the integrity of the fabrics in your clothing.

11. Why are there only nylon clothes in the pool?

  • Nylon doesn't absorb water so that you won't feel heavy.
  • Nylon has got much less weight than cotton fabric.
  • Yes, in both cotton and nylon, your skin will be protected.
  • Swimming pools are rich in chlorine chemicals. 

12. Do swimsuits shrink in water?

You cannot shrink bathing suits that are made of nylon, polyester or spandex. Swimsuits made of mostly polyester will not shrink as well. Many bathing suits are now made of cotton and cotton blends. You can shrink an all-cotton swimsuit and cotton blend fabrics.

13. How do you take care of a swimsuit?

  • Please take off the swimsuit and rinse it with cold water to remove as much chlorine as possible, which can cause damage to the fabric and colour. Do not clean with soaps or detergents or in a washing machine.
  • Squeeze out excess water.
  • Let the suit air dry, laying it flat or hanging it up to dry with clothespins.

14. Will a swimsuit shrink in the dryer?

You could pop the suit into the dryer on high heat for about 20 minutes to finish drying it. This could help the material shrink even more, but letting it air dry will be gentler. 

15. Do bathing suits shrink or stretch?

Typically, swimwear is made of a spandex/lycra fabric that does not shrink; however, with many of these smaller lines popping up, the fabric content sometimes isn't what it should be.

16. Is polyester allowed in pools?

Chlorine affects everything, but synthetic fabrics (polyester, nylon, polypropylene) are resilient, and polyester is quite resilient to chlorine. Polyester also tolerates chronic full sun/ultraviolet (UV) exposure (nylon fades and becomes brittle from UV exposure over time).

17. What does chlorine do to cotton?

Chlorine will bleach and degrade cotton fabric quickly. For example, lycra and spandex are human-made fabrics found in sportswear. But these are just as bad as cotton in chlorinated water because chlorine destroys the elasticity of these polyurethane-based materials. Thus, making them brittle and causing them to lose their shape.

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