How to Shrink Bikini Bottoms

Bathing suits or bikini bottoms are one of the most used wearable garments. Those garments are usually a little tighter than normal clothes and fit the body. These need to fit because they are also used as swimming costumes.

Our topic today is how to make swimming suits shrink when you are unexpectedly getting them bigger than you expect. A bikini bottom swimsuit is usually made of polyester, polyester, and cotton blending or velvet fabric of synthetic fiber.

For a perfect fit for your body, bathing suit or bikini undergarments need to treat with hot water and ironing. Those processes will help to shrink the fibers so that your garments get shrink and perfectly attach to your body comfortably.

Since excessive amounts of polyester are used in the construction of bikinis, it is necessary to first consider the way of shrinkage of polyester fabric and the way in which it is used.

In today’s article, we will know how you shrink bikini bottoms or swimsuits step by step.

How To Shrink Bikini Bottoms

How to shrink bikini bottoms with washing and dry

Step 01: Dryer treatment

First, give a dry wash of your swimsuits or your bikini with a dryer. Swimming suits can often contain dust or various types of dirt such as grim, wax, oily substance, and so on.

Clothes on both sides should be air-dried well with a dryer.

Cotton swimsuits or bikinis are more comfortable than bikinis or undergarments made of nylon or polyester.

Step 02: Soak your swimsuit in cold water

It is better to keep the suites well soaked in water. Different types of oily substances, as well as different types of dust dirt, fall through the dust, and this soak.

Soak swimsuit before washing

Polyester T-shirts were soaked in water just like we used to in this case of bath suit bikini bottom.

Not to mention cold water here, only in room temperature water but also by soaking clothes.

In the case of polyester, spandex, or nylon we need to refrain from high heat.

Step 03: Give a detergent wash to your garments with warm water

Whether it is cotton fabric or synthetic fiber fabric, it needs to be washed with detergent in hot water.

add detergent in washing machine

The temperature and the amount of detergent used in the care label of your bikini or swimming suit are specified.

These should be carefully monitored once before warming up so that your bikini or sweetie can be used for a long time.

A bathing suit bottom is usually better with liquid detergent. 15 to 20 minutes in case of washing machine need to wash your swimsuit.

On the other hand, if you run with your hands, soak them in warm water for about 10 to 15 minutes, and when the temperature drops, wash them gently.

Step 04: Use a washing machine dryer

Use the temperature of your washing machine based on the raw materials in the bikini bathroom suite and use it.

Use a washing machine dryer

If the bikini is made of cotton, use it at the highest temperature in the washing machines dryer. And if it is polyester by spandex, keep it inside the dryer for a short time.

This process is important because it allows the fibers inside the bikini or swimsuit bottom to shrink.

In the case of polyester or spandex, the property of their shrinkage is much less, but cotton has a very good amount of shrinkage.

Note: Wash your denim jeans before hemming. After it dries well prepare it for your hem.

Step 05: Let your garments dry in natural condition

The next important step for the swimsuit garment is to bring it to normal temperature. Hang it out with the help of a hanger and clip.

dry in natural condition

Give it a whole day or more than ten hours to dry it. Natural air will make it dry frequently so that your favorite swimsuit can take time.

Warning: Keep out of direct sunlight when drying naturally. Due to the dye on the polyester fabric, sunlight can have a direct effect. Do not repeat this process in the after and after in a swimsuit as it may damage your clothes.

By trailing you can shrink swimsuit

You are always open to shrinking any cloth with trailering and a bikini or any other swimsuit is no different.

Take measurement of bikini bottoms and your body

In trailing there 3 main parts in the process, at 1st step you need to take a measurement of your bathing suit and your body to shrink to fit your body. Taking this measurement is the most important part of this process, cause it will determine how much shrinkage happened.

take a measurement of your bathing suit and your body to shrink to fit

Cut according to measurement

In the 2nd step, you need to cut clothes according to your taken measurement. Even if you want to convert any big swimsuit to bikini bottoms. You can do that by cutting it.

trailing your swimsuit to shrink or convert

Sew to make fit one

In the 3rd step, it’s time to sew. By sewing, you need to attach all the parts you cut to join and make your cloth the final shape. In this step again sewing according to the first step taken measurement is important.

sewing according to taken measurement to shrink

After finishing the shrinkage you should go for ironing your suit to make them look more professional and shrink more. ironing can help you in the further shrinkage process. But remember the first time ironing is crucial to any clothes after making or shrinking by sewing a big part of it.

How Ironing can help to shrink bath suits

Iron can shrink your clothes if you have the right rules. Let me discuss this topic in 4 easy step-by-step processes too.

1. Wash with and rinse with normal water

Rinse normally at normal temperature. Like the previous processor, you can use detergent or fabric softener.

Wash with and rinse with normal water

It should be noted that this washing process lasts at least 15 to 20 minutes.

For the next step, the cloth is needed to out of the excessive water. There may be some moisture but no matter.

2. Cover with a cotton towel for iron

Cotton Tower is a very good water absorber.

Cover with a cotton towel for iron

Lay your clothes on aboard. Place the tower on top of your wet cloth so that there is a wet cloth at the bottom and a dry towel at the top. In this case, your clothes are ready for the seat and it does not need extra steam as it is already humidity.

3. Iron your bath suit or bikini with low medium heat

You have to be careful not to hit the high temperature here. Since the bikini or your bathing suit is still wet, iron gently.

After 15 to 20 minutes of good ironing, the moisture will go away and it will start drying. Continue to iron slowly until the water is completely gone. In this case, it may take a little time, but compared to the time, this work is much more effective.

Ironing to Shrink Bikini Bottoms

Also, look for different wet parts of the clothes and let them press with a towel and give ironing.

Stop when you feel you have run out of iron and there is not much water left. It may be that your clothes still feel a little wet but it won’t be a problem.

4. Dry your cloth with a hanger

Just like last year, hang your clothes with the help of a hanger and let them dry normally. When your bikini or suit is dry, you can compare yourself to how much it has shrunk.

Dry with a hanger


Bikini suits or our undergarments are very sensitive. So, in this case, you have to do some special care for washing and after treatment. If the amount of polyester in the suites is more then you have to decrease the temperature of drying and ironing. This way you can shrink your undergarments bikini sitting at home for your own needs.

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