Swimsuit material: which material is best for a swimsuit?

At first glance, swim trunks seem like a simple piece of clothing. Yet the bathing suit material largely determines how comfortable your bathing suit is, how fast it dries and how long it stays beautiful. Whether you spend a day at the beach, actively swim or stroll from terrace to pool during your vacation, the right material makes a world of difference.

But which swimsuit material is actually the best? And why are more and more premium brands choosing recycled materials?

Why is the material of a swimsuit so important?

A swimsuit gets more abuse than many other garments. It comes into contact with salt water, chlorine, sunlight, sand and regular washing. Therefore, the material must meet several requirements:

• Being quick drying
• Lightweight feel
• Stay in shape
• Be resistant to chlorine and UV radiation
• Comfortable wear even outside the water

Not every material scores equally well on all of these points. That's why it's smart to look beyond colour or model.

Polyester: the most widely used swimsuit material

By far the most commonly used swimsuit material is polyester. This is not without reason. Polyester absorbs little moisture, so it dries quickly after swimming. In addition, it is strong, hard-wearing and retains its colour for a long time, even with heavy exposure to sunlight and chlorinated water.

Modern swim trunks are often made of lightweight polyester fibres that barely retain water. As a result, the swim trunks do not feel heavy when you get out of the water.

For men who value comfort, durability and practicality, polyester remains one of the best choices.

Recycled polyester: the sustainable choice

Whereas traditional polyester is produced from virgin raw materials, recycled polyester is created from existing plastic materials such as PET bottles. This reduces the need to extract new raw materials and reuses waste.

The great thing is that recycled polyester offers the same benefits as regular polyester:

• Quick-drying
• Colourfast
• Lightweight
• Wear-resistant
• Comfortable

That's why Undiemeister chooses 100% recycled polyester in its swim trunks. This way you combine optimal wearing comfort with a lower impact on the environment.

Polyamide: soft and strong

Another common swimsuit material is polyamide, also known as nylon. This material often feels slightly softer than polyester and is known for its high abrasion resistance. In addition, polyamide also dries quickly and offers a comfortable fit.

Many brands use a combination of polyamide and elastane to add extra stretch to the fabric. This combination is especially common in tighter swim shorts or competition apparel.

Elastane: for freedom of movement

Elastane is rarely used as a stand-alone swimwear material, but often complements polyester or polyamide. Thanks to its stretchability, elastane allows for greater freedom of movement and a better fit. A small amount of elastane can make a swimsuit fit more comfortably without losing its shape.

Why cotton is less suitable

Sometimes you come across swimwear that incorporates cotton. Although cotton feels comfortable on the skin, it is less suitable for swimwear. This is because cotton absorbs a lot of moisture and dries relatively slowly. As a result, the fabric can become heavy and feel less comfortable after swimming.

For casual beach shorts, cotton is sometimes blended with synthetic fibres, but for optimal performance, polyester usually remains the better choice.

What is the best swimsuit material?

The best swimsuit material depends on your needs, but for most men, recycled polyester offers the ideal combination of comfort, functionality and durability.

A quality swimsuit made of recycled polyester:

• Dries quickly
• Feels light
• Retains its colour
• Lasts for years
• Has a lower environmental impact

Thus, it perfectly matches what modern premium essentials should offer: maximum performance without compromising on comfort or durability.

Conclusion: consciously choose the right swimsuit material

When choosing a new pair of swim trunks, many men mainly look at colour or model. Nevertheless, the bathing suit material ultimately determines how comfortable your bathing suit is to wear and how long you can enjoy it.

Polyester remains the absolute favourite thanks to its combination of quick-drying properties, durability and comfort. In addition, if you choose recycled polyester, you are also making a conscious choice for the future.

A good swimsuit can be recognized not only by how it looks, but especially by the material it is made of. And that is exactly where long-term wearing pleasure begins.