Polyester is tough and water-resistant, but don't let that deceive you. Polyester does not absorb moisture and may potentially make you sweat more. The moisture either sits on your skin or is forced to your outer layer, which is the polar opposite of what you want from a sweat-blocking textile. However, this property can be an advantage for people who need their clothes to last longer.
The wrinkle and damage resistance of the cloth helped it acquire popularity. However, wearing a polyester shirt or dress in the summer might result in sweat patches since polyester is also water-resistant and does not absorb perspiration. Since polyester doesn't breathe, you should wash and dry it properly to avoid mold growth.
There are two types of polyester: natural and dyed/printed. Natural polyester fibers are obtained from plants and they're usually soft and luxurious. They tend to be light weight with a high degree of strength. Dyed/printed polyester fibers are produced by dyeing cotton or other fibers first and then spinning them into yarn before being made into fabrics. These are commonly used because of their durability and color range. However some people complain about the smell of dyed/printed polyester products.
Wearing polyester clothes in the summer means that you're going to need to take special care of them since they won't be as resilient to stains and wrinkles as other materials. Make sure to clean them regularly so they last as long as possible.
Polyester, on the other hand, is water-resistant. Polyester is also referred to as "everyday waterproof," which indicates that, while it is not entirely waterproof, it is sufficiently protective for most daily scenarios, such as being out in the rain or snow, but not completely buried under water for an extended amount of time. Like cotton, polyester becomes less resistant to moisture as it gets wet and dry.
There are several factors that determine how water-resistant a particular polyester item will be. The number one factor is the type of fiber used to make the item. For example, if the item is made from 100 percent polyester poplin, it will be more water-resistant than if it were made from 100 percent rayon. Poplin is a heavier fabric with more texture than rayon, so it tends to hold water better.
Next, consider the material used to attach the fibers together. If the item is made up of many individual threads rather than a single woven thread, it will be more water-resistant than something with many loops or strands, such as cotton. Last, consider the method used to finish the item. If the item has been brushed or padded with water-resistant materials, it will be more water-resistant than one that has not been treated with these materials.
"Polyester and most synthetics are considered hydrophobic, which means they repel water," Ms. Lamarche explains. When a hydrophobic fabric, such as polyester or nylon, is closely knit, such as the glossy lining of a garment, sweat is trapped and can make you hot. Loose-fitting clothes tend to be less constricting and provide more ventilation, so people wearing them will feel less restricted and hotter.
The type of material a shirt is made from also affects how much it will absorb moisture from your body. For example, cotton is a natural fiber that absorbs moisture from the air around it. This property makes cotton clothing breathable, which is why it's popular for summer wear. However, because cotton fibers are very large/loose, they don't hold onto moisture like synthetic materials do; thus, you may want to wash your cotton shirts regularly.
Synthetic fabrics, such as polyester, are man-made materials that are just as good at keeping heat out as cotton is at letting it in. They are also very durable and easy to clean. However, like cotton, synthetic fabrics can trap moisture inside the material where it can cause problems for other parts of your wardrobe if it isn't removed.
So, yes, sweating more in polyester is possible but not likely.
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