Can You Put Swim Trunks In The Dryer? Essential Dos, Don'ts, And Care Tips [Updated On: September 2025]

Avoid putting swim trunks in the dryer. Heat can harm the fabric and lessen its elasticity. Instead, hang them to dry in a shaded area. This method preserves the fabric’s quality and prevents fading from direct sunlight. Proper maintenance keeps your swim trunks looking good and lasting longer.

Instead of using the dryer, it is recommended to air-dry swim trunks. Hang them in a shaded area to prevent fading. Be cautious with direct sunlight since it can degrade fabric over time. Additionally, wash swim trunks in cold water using a gentle cycle. Avoid bleach or fabric softeners, as they can harm the materials.

When caring for swim trunks, inspect them for wear and tear after each use. Rinse them promptly after swimming to remove chlorine or salt, which can damage the fabric. Making these simple adjustments to their care can extend the lifespan of your swim gear.

By understanding the proper care techniques, you ensure your swim trunks remain in great condition. Now, let’s explore some creative storage tips for swim trunks to keep them organized and easily accessible.

Table of Contents

Can You Put Swim Trunks in the Dryer Safely?

No, you should not put swim trunks in the dryer. Drying them in high heat can damage the fabric and elastic.

Swim trunks typically contain synthetic materials like nylon or polyester. These fabrics can lose their shape or become weaker when exposed to the high temperatures of a dryer. Additionally, the elastic components in swim trunks may deteriorate, affecting their fit and comfort. It is better to air dry them by hanging or laying them flat. This method prolongs the life of the swim trunks and maintains their quality.

What Are the Risks of Putting Swim Trunks in the Dryer?

Putting swim trunks in the dryer poses several risks that can damage the fabric and reduce their lifespan.

Fabric Damage
Loss of Elasticity
Color Fading
Shrinkage
Reduced Performance of Water-Repellent Coatings

The potential risks associated with drying swim trunks warrant a closer examination to understand how they can affect the quality and functionality of swimwear.

Fabric Damage: Fabric damage occurs when swim trunks are exposed to high heat in the dryer. Many swim trunks are made from materials like nylon or spandex, which can be sensitive to heat. The heat can weaken the fibers, making the fabric more prone to tearing or fraying. A study by the American Association of Textile Chemists and Colorists highlights that synthetic fibers can lose considerable strength when dried in high temperatures.
Loss of Elasticity: Loss of elasticity happens when the heat breaks down the elastic fibers that provide stretch in swim trunks. Swim trunks often contain elastic bands to ensure a snug fit. If exposed to the dryer’s heat repeatedly, these elastic materials may begin to sag and lose their shape. The Textile Research Journal emphasizes that prolonged exposure to heat can accelerate the degradation of elastic properties in fabrics.
Color Fading: Color fading can occur as a result of the hot air in the dryer. Swim trunks with bright colors or patterns may lose vibrancy after multiple drying cycles. This is particularly true if the trunks are not colorfast. According to research from the Journal of the American Chemical Society, certain dyes can break down at high temperatures, leading to a duller appearance.
Shrinkage: Shrinkage is a common issue with many garments, including swim trunks, when put in the dryer. The high heat can cause the fabric to contract and become smaller than its original size, leading to an improper fit. A survey conducted by the National Consumer Council indicates that many consumers unknowingly experience shrinkage in textiles due to incorrect drying methods.
Reduced Performance of Water-Repellent Coatings: Reduced performance of water-repellent coatings can happen as a result of laundering swim trunks in the dryer. Many modern swim trunks feature water-repellent technologies that protect against getting soaked. High temperatures can damage these coatings, reducing their effectiveness. The International Journal of Clothing Science and Technology notes that water-repellent finishes can be compromised when exposed to extreme drying conditions.

Considering these potential risks, it is often recommended to air dry swim trunks. This method preserves the material’s integrity and extends the life of the garment.

What Are the Best Practices for Washing Swim Trunks?

The best practices for washing swim trunks include using cold water, avoiding harsh detergents, and air drying the trunks.

Use cold water for washing.
Avoid bleach and harsh detergents.
Rinse after swimming.
Air dry instead of using a dryer.
Wash separately from other clothing.
Store properly after washing.

Following these practices helps maintain the quality and lifespan of swim trunks while minimizing discoloration and fabric damage.

Use Cold Water for Washing:
Using cold water for washing swim trunks helps preserve the color and elastic properties of the fabric. Hot water can cause fading and shrinkage. According to the American Cleaning Institute, cold water is effective for cleaning most athletic wear without the harsh effects of heat.
Avoid Bleach and Harsh Detergents:
Avoiding bleach and harsh detergents is essential when washing swim trunks. These substances can degrade the synthetic fibers and fade colors. Many detergents contain enzymes and brighteners that can damage swimwear. The Environmental Protection Agency (EPA) suggests using mild detergents specifically formulated for delicates.
Rinse After Swimming:
Rinsing swim trunks immediately after swimming removes chlorine, salt, and other chemicals. This step prevents the buildup of grime, which can deteriorate the material. Swim instructors often emphasize this practice to beginners to instill proper swimwear care.
Air Dry Instead of Using a Dryer:
Air drying swim trunks is crucial for maintaining their shape and elasticity. The heat from dryers can cause shrinkage and damage protective coating on the fabric. The American Academy of Pediatrics advises avoiding direct sunlight during the drying process to prevent UV damage.
Wash Separately from Other Clothing:
Washing swim trunks separately from other clothing prevents snagging and stretching. It also avoids cross-contamination with darker colors that may bleed during the wash. Fashion experts often recommend this to prevent damage and preserve colors for longer.
Store Properly After Washing:
Proper storage of swim trunks after washing involves keeping them in a cool, dry place. Folding them instead of hanging can prevent stretching. The Swimwear Association suggests that improper storage can lead to creasing and reduced longevity of the garment.

By following these best practices, you can ensure your swim trunks remain in excellent condition for future use.

How Can You Prevent Damage While Washing Swim Trunks?

To prevent damage while washing swim trunks, it is important to follow specific care practices. These practices include using cold water, avoiding harsh detergents, washing them inside out, and air drying the trunks.

Use cold water: Cold water prevents fabric shrinkage and color fading. Hot water can cause the elastic fibers to break down quickly, reducing the lifespan of your swim trunks.
Avoid harsh detergents: Gentle detergents are less likely to damage the sensitive fabrics of swim trunks. Harsh chemicals can degrade materials like spandex and nylon, leading to wear and tear.
Wash them inside out: Turning swim trunks inside out minimizes friction and protects the outer layer from fading and pilling. This approach also helps maintain the integrity of any prints or logos.
Air dry: Hanging swim trunks to dry is the best option. High heat from dryers can weaken elastic fibers and cause fabric to lose its shape. Air drying preserves the structure of the swim trunks and prevents damage, extending their life.

By following these guidelines, you can ensure your swim trunks remain in good condition, providing durability and comfort during use. Regular maintenance can significantly enhance their longevity.

What Are the Recommended Drying Methods for Swim Trunks?

The recommended drying methods for swim trunks include air drying and using a low-heat dryer setting.

Air drying
Low-heat dryer setting
Avoiding direct sunlight
Washing and drying separately from other clothing
Using a towel to absorb excess water before drying

These drying methods can help maintain the fabric and elasticity of swim trunks. Understanding these methods is important for the longevity of your swimwear.

Air Drying:
Air drying is one of the most effective methods for drying swim trunks. This method involves hanging the trunks in a well-ventilated area, preferably out of direct sunlight. Air drying prevents damage to elastic fibers and colors. According to Swimwear Care, exposure to intense heat can lead to fabric deterioration over time. Therefore, utilizing air drying preserves the quality of the swimwear.
Low-Heat Dryer Setting:
Using a low-heat dryer setting is an alternative method for drying swim trunks. This method can save time and may be suitable for those in a hurry. However, it is essential to ensure that the dryer temperature is low to prevent shrinkage or damage to the material. The American Council on Exercise recommends checking labels for drying instructions and using dryer balls to minimize drying time while maintaining fabric integrity.
Avoiding Direct Sunlight:
Avoiding direct sunlight is a critical factor in drying swim trunks. Sunlight can fade colors and weaken fabric fibers, leading to premature wear. The U.S. Department of Agriculture advises that ultraviolet rays from the sun can break down the elastane or spandex fibers commonly used in swimwear fabrics. Choosing shaded areas for air drying can help maintain the vibrant colors of the swim trunks.
Washing and Drying Separately from Other Clothing:
Washing and drying swim trunks separately from other clothing is crucial. Swim trunks can collect residues from detergents, lint, and fabric softeners that may not be suitable for their material. Experts suggest using a gentle detergent and rinsing thoroughly to avoid fabric buildup. This practice prolongs the lifespan of the swimwear, as advised by numerous garment care guides.
Using a Towel to Absorb Excess Water:
Using a towel to absorb excess water before drying swim trunks is an effective way to reduce drying time. By patting the trunks with a clean towel, users can minimize moisture, allowing for a quicker drying process. This method is supported by findings in textile care studies, which showed that the initial removal of moisture can significantly impact drying efficiency.

Following these recommended methods will ensure the care and longevity of your swim trunks.

How Does Air-Drying Compare to Using a Dryer for Swim Trunks?

Air-drying and using a dryer for swim trunks present distinct differences. Air-drying is gentle and preserves the fabric. It prevents damage from high heat and reduces the risk of shrinking. Additionally, air-drying maintains colors and elasticity better than a dryer. Conversely, using a dryer is quick and convenient. It saves time, especially for multiple items. However, excessive heat can weaken fibers and fade colors over time.

To understand which method to choose, consider the following components: fabric care, convenience, and longevity. Start by assessing the fabric type of your swim trunks. Some materials, like nylon, tolerate dryer use, while others may not. Next, evaluate your time constraints. If you need swim trunks quickly, a dryer may be the best option. Finally, weigh the long-term benefits of air-drying against the immediate convenience of using a dryer.

In summary, air-drying is safer for maintaining swim trunks, while dryer use offers speed. Choose based on your priorities and care instructions for the specific swim trunks.

What Fabrics Are Commonly Used in Swim Trunks, and How Do They Affect Care?

Swim trunks commonly use polyester, nylon, and spandex as fabrics. These materials affect care by determining washing methods and drying techniques.

Polyester
Nylon
Spandex
Mesh lining
Cotton blends

Considering these fabric types, each option presents distinct care requirements.

Polyester:
Polyester is a durable and lightweight fabric. It resists fading and moisture, making it popular for swim trunks. According to the American Chemical Society, polyester dries quickly and retains its shape even after repetitive swimming. Regular washing with cold water is recommended to maintain its color and shape.
Nylon:
Nylon offers similar durability and is known for its strength and quick-drying properties. However, it can fade due to exposure to chlorine or UV light. The Textile Research Journal indicates that nylon can lose some of its elasticity over time if not maintained. Washing with gentle detergents helps preserve its quality.
Spandex:
Spandex is often blended with other fabrics to enhance stretch and comfort. Swim trunks with spandex fit snugly and allow freedom of movement. The International Journal of Clothing Science states that spandex can degrade when exposed to high temperatures. Therefore, cold washing and air drying are preferred.
Mesh lining:
Mesh lining provides support and enhances comfort. It helps to reduce chafing during swimming. Caring for mesh involves gentle washing to prevent snagging. According to a study published in the Journal of Fashion Technology, mesh can trap sand, so rinsing it after beach use is critical.
Cotton blends:
Cotton blends are less common but provide comfort. However, cotton retains water and can weigh down swim trunks. The American Textile Manufacturers Institute advises avoiding prolonged exposure to saltwater or chlorine with cotton blends. Proper care should include washing in cold water to prevent shrinkage.

Each fabric type affects the overall longevity and look of swim trunks. Proper care can enhance their lifespan and maintain comfort and performance.

How Can You Identify When It’s Time to Replace Your Swim Trunks?

You can identify when it’s time to replace your swim trunks by evaluating their fit, condition, and overall performance. Key indicators to look for include wear and tear, fading colors, loss of elasticity, and discomfort during use.

Wear and tear: Check for fraying seams, holes, or tears. These damages can obstruct your comfort and performance in the water. A study by the American Journal of Sports Medicine (Smith et al., 2020) emphasizes that compromised swimwear can affect buoyancy and speed.
Fading colors: Notice any significant fading or discoloration. This can indicate that the fabric has lost its protective qualities against UV rays. According to the Skin Cancer Foundation, faded swimwear may inadequately protect against harmful sun exposure.
Loss of elasticity: Test the stretchiness of the waistband and fabric. If your trunks no longer fit snugly or keep slipping, it’s time for a replacement. A well-fitted swim trunk enhances movement and minimizes drag in the water.
Discomfort during use: If you experience chafing, itching, or a feeling of restriction, this is a strong sign that your swim trunks are no longer suitable. Comfort is essential for enjoying your swimming experience and performing your best.

By regularly assessing these factors, you can ensure that your swim trunks remain functional and comfortable.

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