Rayon vs Polyester – A Detailed Comparison

Rayon vs Polyester – A Detailed Comparison

Polyester and rayon are different fabrics, although most people usually confuse them with one another. Rayon is a plant material made from chemicals, making it a semi-synthetic fiber. It is pretty similar to silk and is a breathable option, making it suitable for warm temperatures and drapes. On the other hand, polyester is a petroleum-based synthetic that isn’t breathable. As a result, polyester doesn’t drape and can make the wearer feel clammy in hot weather conditions. These fabrics have different properties, making it essential to use the right option for your project. In this rayon vs polyester comparison, you’ll learn how they differ and when to use them.

What is Rayon?

Rayon was discovered over a century ago and developed as an inexpensive alternative to silk. It is a synthetic and natural material hybrid that comes from bamboo and trees. Rayon fibers are created from a rough, woody pulp. During this lengthy process, the manufacturers mix it with chemicals to soften it. 

When you pair the plant matter with chemicals, it results in a semi-synthetic material you can use to imitate silk features. A small change in the processing period allows you to create a thicker fiber and a heavier weave. When created through this process, it gives rayon the same feel as cotton and linen. As a clothing material, rayon can be breathable, and it dries very quickly. A soft, luxurious, and lovely drape is perfect for summer-weight dresses, blouses, and shirts.

You can also utilize this fabric for making lightweight clothing and home décors like curtains and bedsheets. In addition, it is used for medical products and is a versatile option. Rayon isn’t all good as it has some disadvantages of its own. Its natural fiber content could cause it to shrink. It is also not as long-lasting as other fabric and can easily be damaged by sunlight, causing it to tear easily.


  • It is soft, comfortable, and drapes excellently
  • It is breathable and absorbs moisture efficiently
  • Rayon is colorfast and ideal for hot climates


  • Rayon tear easily and require delicate care
  • It is susceptible to sun damage and shrinks when washed
  • Rayon wrinkles pretty easily and tends to stretch out of shape
  • It isn’t environmentally friendly

Types of Rayon

The different types of rayon are essential to understanding the distinct differences between both fabrics in this rayon vs polyester comparison.

  • Regular Rayon: This is a common form of rayon that most people refer to as viscose. It is the most popular rayon used in clothing and comes from blending chemicals and plant matter. The regular rayon can imitate linen or cotton, depending on its thickness.
  • Modal Fiber: This is the rayon developed through stretching. Manufacturers created this type of rayon to be stronger and more durable than regular rayon. The fiber is also durable and wear-resistant, and you can blend it with other materials like wool, cotton, synthetic and more. Modal rayon is also available in clothing, home décor, and outdoor wear. There are two types of modal fiber rayons: high wet modulus and high tenacity modulus rayons.
  • Cuprammonium Rayon: This is a recycled fabric made from old garments. The copper used in creating this rayon usually features ammonia, copper, and caustic soda. Finally, it is washed in chemicals to harden it. The resulting fabric from this blend usually features stretch and a sheerness that’s quite similar to silk. However, it isn’t a durable fabric and has no tolerance for heat. It is also not environmentally friendly because of the toxic chemicals used during the production process.

What is Polyester?

This rayon vs polyester comparison won’t be complete without a view of polyester. Derived from fossil fuels, you can synthesize the fiber through a chemical reaction that involves petroleum, air, and water. The material first became popular in the 1970s. It is popularly used for pants, dresses, shirts, and skirts and is a cheap alternative to cotton and silk. 

It is also a product of oil which means it has similar features to plastic, especially the plastic used in making disposable water bottles. This is because the bottles and fabrics come from the same substance, which is polyethylene terephthalate. Polyester is a durable fabric, water-resistant, and relatively long-lasting. It is used for outdoor wear and sportswear. However, it also has its downsides, as it makes the wearer sweaty in hot climates. It also feels like plastic when you wear it close to the skin.


  • Polyester is easy to care for and wrinkle-resistant
  • It dries quickly due to its lightweight
  • It is water-resistant and also durable


  • It feels like plastic when worn against the skin
  • Polyester is not breathable and feels clammy in hot weather
  • It is not tolerant of heat and not sustainable since it depends on fossil fuel

Types of Polyester

There are different types of polyester which also differentiates the fabric in the rayon vs polyester comparison. Below are the common types of polyester you should not.

  • Polyethylene Terephthalate (PET): This is the most common polyester type. It is a thermoplastic polymer also used in the production of plastic bottles. It is famous as a recycled polyester resin globally. There are several uses for polyethylene terephthalate, like screen-printing mesh, filters, and many other commercial uses. This polymer is the primary material used in creating the polyester fabric for home décor and clothing.
  • Poly-1, 4-Cyclohexylene-Dimethylene Terephthalate (PCT): This PCT shares the chemical resistance and stability of the PET. It is also heat-resistant and has a high melting point, making it an excellent choice for electronic components and injection molding. You can also use it in industrial filters.

Rayon vs Polyester – What’s the Difference?

When it concerns rayon vs polyester, the main distinction is that while rayon is semi-synthetic, polyester is entirely synthetic. While this distinction might seem small, it is pretty significant in many ways and gives both fabrics their unique strength and weaknesses. This section covers how each fabric behaves in different situations.

Rayon vs Polyester – Warmth

Rayon isn’t known for its warmth features. Although it is a lightweight fabric that serves as an excellent alternative to silk, it is a thin fabric used in summer dresses and blouses. Rayon is breathable and allows heat to escape the wearer’s body through a cooling effect. Although you can layer it under a cardigan on cool summer evenings, it offers limited insulation qualities. Rayon is a fabric you can use for keeping cool and not warm.

Polyester is a cold fabric when you wear it next to the skin. It isn’t breathable. Therefore it keeps sweat close to the body when you wear it, which is quite dangerous in cold climates. Any coldness close to the body can significantly reduce your core temperature. On some occasions, it can lead to hypothermia. You can use polyester to make fleece, a fabric for hoodies and jackets.

 This is a material that can retain heat. However, you’ll need to add layers underneath it to make it effective. Simply wearing fleece without layers allows wind to flow straight to the body. Polyester is also a water-resistant material you can use as a shell or outer layer over a hoodie or a jacket. When you combine both, it increases the polyester’s retention capacity.

Rayon vs Polyester – Breathability

Polyester is petroleum-based and similar to plastic. Unfortunately, it isn’t a breathable fabric, which doesn’t let moisture evaporate from the body. It also holds perspiration close to the skin and causes a clammy feeling for the wearer. Wetness causes the fabric to cling to the body, which is quite uncomfortable. The inability of the polyester to breathe makes it an unsuitable choice for most garments worn next to the body.

On the other hand, rayon is semi-synthetic as it comes from a blend of artificial and natural fibers. The natural base of the fiber comes from plant matter, and it gives rayon an edge over synthetics like polyester. A clear distinction in the rayon vs polyester comparison is that rayon is breathable. Rayon is similar to linen and cotton in terms of breathability. Moisture can evaporate from the skin as rayon absorbs it easily. This helps to keep the body fresh, cool, and comfortable.

Rayon vs Polyester – Climate

Choosing which is the best for various climate conditions in the rayon vs polyester comparison is quite simple. When the weather is hot or relatively warm, you should go for rayon fabric. It dries quickly and is a breathable fabric that easily absorbs moisture. Therefore, it allows sweat to evaporate from the skin to keep you cool and dry. Therefore, rayon is popular amongst manufacturers creating garments for warmer temperatures. 

However, rayon doesn’t perform well in cold climates. It is similar to silk as it is a light fabric with a lovely drape. Since it is lightweight, it also means it isn’t excellent at trapping air next to the body. You can wear it with a sweater for extra warmth; its insulation qualities are almost non-existent. 

On the other hand, polyester is ideal for colder climates; you just have to avoid wearing it close to the skin. It is best for outerwear because it offers users water-resistant properties. You can utilize polyester for weatherproof shells for hoodies and jackets. Retaining heat ensures that the user remains warm. On the flip side, it is a fabric you should avoid in warm climates. 

It is excellent for retaining heat and prevents heat from escaping in warm temperatures. However, since it doesn’t let the water evaporate from the body, it can cause a buildup of air next to the skin, leading to sweat. This could make polyester hot and sticky for the user.

Rayon vs Polyester – Durability

If you want a fabric that will last you many years, rayon is not your option. It cannot withstand hard work and rough care. Rayon is too similar to silk since it was introduced as an imitation of silk. Rayon tears easily and, therefore, requires a soft, delicate hand when washing it. Although the fiber efficiently withstands hot water, heat can cause it to shrink. However, with the proper care, rayon can last you many years of use.

On the other hand, polyester is a durable and strong material. Since it comes from the same material as plastic bottles, it is resistant to stains, water, creases, and continuous washing. However, its similarity to plastic means it cannot thrive under heat. Nevertheless, the overall durability of polyester is still superior to rayon, making it the best option if you’re looking for resilience, strength, and stability.

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Final Thoughts

Rayon and polyester are pretty different; this rayon vs polyester comparison provides insight into their peculiarities. Where one fabric excels, the other might perform badly. Choosing between polyester and rayon depends on the purposes and your needs for it. Most of the time, the choice comes down to personal preference and budget. The key to determining the best option is to choose the best fabric for your task.

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Rayon vs Polyester – A Detailed Comparison Rayon and Polyester differ in many ways. Keep reading this rayon vs polyester comparison to determine the better option for your project.
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