How to Shrink a Polyester Shirt? Best DIY Techniques (2021)

How to Shrink a Polyester Shirt? Many people have found that polyester shirts are always too big for them. This is because many people are unable to shrink their shirts, but with this guide, you can learn how to shrink your shirt.

Polyester can be a difficult fabric to shrink if you have never done it before. Luckily, the process is fairly simple when you have the right tools. This guide will explore methods for shrinking a polyester shirt to the correct size. Let's start by understanding what Is Polyester before we learn about the best methods for doing so.

What Is Polyester?

Polyester is a synthetic fabric created by weaving various polymers like polyethylene, polypropylene, and polyamide with natural fibers like cotton or wool. It is durable, breathable, and provides insulation against the cold. It is also wrinkle-resistant. It can be considered a durable, lightweight fabric. It is waterproof and resistant to fading. Main Functions of Polyester - Synthetic Fabric
  • Waterproof and Damp Resistant
  • Breathable
  • Easy to Clean
  • Breathable and Stretchy
  • Durable, Warm, Flexible
  • Wrinkle-Resistant
  • Suitable for Industrial Use
  • Does Not Tear
  • Resistant to Fading

Why Do You Need To Shrink Polyester shirt?

Polyester is one of the most common fabrics used in clothing today. Polyester has a problem with stretching out and shrinking after washing, so the question "why do you need to shrink polyester shirt? " is something that many people ask. There are two main reasons why people want to shrink polyester shirts. The first is to make it fit better. When you purchase a polyester shirt, sometimes it will be too big or too small for your liking. It is very hard to find the perfect fit. When you shrink a polyester shirt, it will allow you to adjust the size of the shirt to fit your body perfectly. The second reason is to prevent damage from occurring to the garment. Shrinking polyester shirts can help to preserve the shape of the garment and keep it from deteriorating over time. Over time, polyester shrinks due to light exposure. For example, a polyester shirt that is left in the sun for a long period of time will shrink, while a polyester shirt that is kept inside will stretch out.

Best Methods To Shrink Polyester shirt

Wash and Dryer

Shrink Polyester shirt - Wash and Dryer This method is high-heat, so turning the cloth inside out is essential before putting it in the machine. To avoid color bleeding at high temperatures, it is best not to place multiple clothes together. These are the steps to shrink your polyester fabric 1. Place the garment you want to shrink in your machine. If you don't want to wash the cloth, you can use any detergent to shrink it. Hot rinse is recommended if you need to rinse the cloth. It helps to shrink the cloth. 2. Transfer your garment to the dryer immediately after it is finished washing. The extreme heat of your dryer will cause most shrinking. 3. Once the garment is dry, take it out of the dryer. Let it cool at room temperature for a while. The garment can be tested to ensure that it shrinks perfectly. If it doesn't shrink to satisfaction, you can go back and repeat the process as described above. This is a bad idea. It can cause the cloth to lose its color, newness, and overall durability.

Using an Iron

Shrink Polyester shirt - Using an Iron Use hot water to wash the garment. Set the machine to the highest and most hot settings. Make sure that the cycle is long. Set the wash setting and rinse the temperature to high. Place the cloth on an ironing board, and after the wash cycle has ended, remove the polyester from the washer and transfer it to an ironing board. To reduce fade, make sure the cloth is turned inwards. To prevent damage to your clothing, place a pressing cloth on top of the garment. To prevent polyester from getting too stiff, use a low heat setting or medium heat setting. Then, iron the clothes until they are completely dry. You don't want the iron to heat up because the polyester will dry faster if the iron is dry.

Shrink a Polyester Shirt with Boiling Water

If the polyester shirt is still damp, this method will work. First, it is easy to follow the steps: turn the shirt inside-out and then heat the boiling water. Polyesters have a specific boiling point. It is essential to take into account the shirt's dimensions and thickness. Soak the shirt in boiling water to allow the heat molecules to break down the polyester fibers. This causes the shirt to shrink in its overall structure. This process takes about an hour. Caution: When putting your shirt in hot water, use a heatproof utensil like a wooden spoon. This allows you to immerse the cloth in hot water quickly. Do not fill the pot. Video:

Using a Clothesline

This works well with polycotton blended fabrics. Polycotton blends are more accessible to shrink due to their cotton content than pure synthetic fabrics. The garment will need to be washed in a warmer environment than normal. To shrink, polycotton does not require as much heat as 100% Polyester. Make sure your garment is entirely inside out before washing. This will preserve the color and prevent it from fading. Turn on the washer to hot. Shrinking polyester doesn't require any detergent unless you have dirty clothing. Hot water alone will shrink new garments and wash clothes that have been washed before. After washing the clothes, hang them on a clothesline for drying. The extra heat will aid the shrinking process from the sunlight.

Different Types of Shrinkages

Before shrinking your poly shirt, there are a few things to remember. Shredding a Polyester Blend Shirt A care label that says the shirt is a polyester blend will indicate equal amounts of cotton and polyester fabric. A blended shirt is much easier to shrink than a 100% polyester one, as it takes less heat to get it to the correct size. Minimal Polyester Shrinking Let's say your shirt has minimal shrinkage. To get the job done, wash it in a washer and dry it with a dryer. If the cloth is clean, laundry detergent is unnecessary. It is much more effective if the polyester is mixed with cotton. Moderate Polyester Shrinkage A polyester shirt that isn't blended with cotton will shrink better if you use a higher heat setting. This is ideal for garments that require extra shrinkage. Maximum Polyester Shrinkage Because 100% polyester is a synthetic fiber, high heat is necessary to shrink it. To get the best shrinkage, you can use an iron that heats up.

Tips When Shrinking Polyester Clothes

Tips When Shrinking Polyester Clothes Read instructions Shrinkage can be dangerous and can cause damage to the garment. Therefore, before attempting to shrink your shirt, make sure that you follow the directions carefully. There are a few items that can cause shrinkage, so be sure to read the labels carefully. Use a laundry bag When you want to shrink a polyester shirt, you need to use a laundry bag or one of those small vacuum bags. This will keep the shirt from shrinking too much and causing damage. Let it dry completely The drying time for a polyester shirt after being washed should be at least 8-12 hours before trying to shrink it. If you try to shrink the shirt before it is completely dry, then there is a chance that the shirt can break when it is stretched too much. Don't pull too hard When you shrink a polyester shirt, you should try to pull the shirt at a consistent pace. You can use a soft pair of scissors or a piece of soft dental floss. However, if you pull too hard on the shirt, it can break and split apart. Do it right It is important to note that you shouldn't shrink polyester shirts on a regular basis. Shrinking a polyester shirt too much can lead to wrinkles, a change in shape, and a change in size.


We hope you can shrink your polyester shirts easily with these methods and achieve the best results. These tips and tricks can help you to preserve your polyester shirts and maintain their shape. Try them out and let us know your results in the comments! If you have any better tips to share or questions to ask, please leave a comment. In case you have a unique problem, don't hesitate to reach out to us! Thanks for visiting