Types of fabrics for swimwear: a complete guide to choosing quality and durability

Choosing a bikini or swimsuit is not just a matter of design or color. The fabric is one of the most important elements, as it determines how it fits the body, how it withstands the passage of time, and how it behaves against water, sun, or chlorine.

At Roidal, we have been designing swimwear in Spain for over 40 years, working with high-quality European fabrics that guarantee durability, elasticity, and a perfect fit. That’s why understanding the different types of fabrics for swimwear is key to choosing a garment that truly makes a difference.

1. Polyamide (Nylon)

Polyamide is one of the most widely used fabrics in swimwear. It stands out for its strength, elasticity, and durability, as well as its ability to adapt to the body like a second skin.

Advantages:

• High resistance to wear

• Quick drying

• Great elasticity and comfort

At Roidal, we use polyamide in many of our collections because of its ability to enhance the silhouette and maintain its shape garment after garment.

2. Elastane (Lycra)

Elastane, also known as Lycra or spandex, is the fiber that provides elasticity to the fabric. It can stretch several times its size and return to its original shape without deforming.

Advantages:

• Maximum elasticity

• Perfect body fit

• Freedom of movement

Elastane is usually blended with other fabrics such as polyamide or polyester to achieve the perfect balance between comfort and resistance.

3. Polyester

Polyester is a material widely used in swimwear for its durability and water resistance. In addition, it is less prone to losing color over time.

Advantages:

• High chlorine resistance

• Quick drying

• Longer-lasting color

It is an excellent option for bikinis that are worn frequently, especially in the pool.

4. Lycra (blend of polyester or polyamide + elastane)

When we talk about “lycra” in swimwear, we usually refer to a blend of fibers (such as polyester or polyamide) with elastane. It is the most common fabric in today’s bikinis and swimsuits.

Advantages:

• Perfect fit

• Flexibility

• Comfort in motion

At Roidal we work with these types of fabrics in different weights to create garments that support, slim, and accompany the body naturally.

5. Microfiber

Microfiber is a lightweight, soft, synthetic fabric that feels very pleasant to the touch. It is used in many swimsuits for its comfort and quick-drying ability.

Advantages:

• Soft feel

• Lightweight

• Ideal for prolonged use

6. Recycled fabrics

Increasingly present in swimwear, recycled fabrics (based on recycled polyamide, for example) offer similar performance to traditional ones, but with a more sustainable approach.

Advantages:

• Lower environmental impact

• High resistance and elasticity

• Same quality as conventional fabrics

At Roidal, this approach is integrated into our commitment to responsible production.

There is no single answer, but there is an ideal combination: polyamide + elastane.

This blend offers:

• Elasticity and fit

• Resistance to intensive use

• Quick drying

• Shape and color retention

That’s why it is the basis of most high-end bikinis, including those from Roidal.

The fabric not only affects durability, but also the design:

• A firmer fabric provides greater support

• A lighter one offers greater comfort

• Fabrics with controlled elasticity help shape the figure

At Roidal, each design starts with the fabric. We choose materials that allow us to create bikinis that not only look good, but feel good.

A quality bikini not only lasts longer, but also:

• Keeps its shape after multiple uses

• Does not lose color from sun or chlorine

• Fits the body better

• Offers greater comfort throughout the day

At Roidal, every garment goes through a final quality control in our facilities, ensuring that every detail meets the brand’s standards.

If you are looking for bikinis made with premium fabrics, handcrafted design, and a perfect fit, at Roidal you will find collections designed to accompany you for more than one season.

What is the best fabric for bikinis?

The best option is usually the blend of polyamide and elastane, as it combines elasticity, resistance, and comfort.

Which fabric resists chlorine best?

Polyester is one of the most chlorine-resistant fabrics, making it ideal for frequent pool use.

Do bikinis lose their shape over time?

It depends on the fabric. Quality bikinis, with elastane and polyamide, better maintain their shape and elasticity with proper use.

Which fabric dries the fastest?

Synthetic fabrics such as polyester and polyamide offer the quickest drying.

How to tell if a bikini is of good quality?

Look at:

• Fabric composition

• Elasticity and recovery

• Finishes and seams

• Feel to the touch