Moisture Wicking Fabrics for Better Comfort and Performance

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By Richard Stephen

Moisture Wicking Cycling Jerseys
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Moisture Wicking Cycling Jerseys

One of the problems every athlete faces is that of perspiration. Alright, we're talking about sweating here. Not "glowing", not "perspiring" but full blown sweating. The kind of sweating that real athletes do. If you run far enough, play hard enough or work out long enough you will sweat. Sweat by the bucket loads. I know it’s gross but it’s also reality. And the reality is there is nothing you can do about.

Sweating is part of your body's natural mechanism to cool itself. We sweat in order to keep our bodies near their normal temperature of 98.6 degrees. If we lost the ability to sweat we could suffer heat exhaustion or, even worse, heat stroke on a hot day without any exertion. We have approximately 2 million sweat glands in our body. The body is roughly two-thirds water and we lose a large amount of that water each day through sweating. We even perspire on a cold days. We sweat when we are not doing anything particularly strenuous. This is why it is so important to drink approximately 2 liters of water each day in order to replenish the lost fluids.

Unfortunately, when we sweat it doesn't just evaporate into the air or drip off of our bodies. It soaks our clothes potentially causing chaffing, rashes and other irritations. Moisture build up inside athletic shoes can encourage fungal infections or athlete's foot. Anyone who has suffered from athlete’s foot knows just how uncomfortable and difficult to cure it can be. So, since we can't stop ourselves from sweating what can the we do to help reduce the problems associated with sweating?

There is Help

Fortunately, modern technology has developed new types of materials know as "Stay-Dry" and "Wick-Away" fabrics. These fabrics provide greater moisture control than traditional fabrics, like cotton, that soak up water and take a long time to dry. Typically constructed in multiple layers, they help move or "wick" sweat away from the body to the fabric's outer layer where it can evaporate more quickly.

These fabrics are usually made of wool or a number of synthetic fabrics like polyester, nylon, or lycra. They are soft, lightweight and breathable and do have some stretch. They are great for use in T-shirts and other undergarments, running and cycling jerseys and shorts, and shirts for any activity where it is desirable to keep your skin as cool and dry as possible.

These fabrics are used in shoe liners and shoe uppers to help alleviate the problem of moisture build-up. The fabric has also been made into athletic socks to wick sweat away from the foot even more quickly. Less moisture in the shoe helps reduce the incidence of blisters, friction sores and even athletes foot.

Undergarments made of these fabrics have the same benefits. Moisture is wicked away from the skin more quickly resulting in less heat buildup and less chance for heat rashes, jock itch and friction sores.  Skiers, snowboarders and anyone involved in winter sports can also benefit from wearing these garments. They also great for hikers and backpackers where staying dry, especially in cold environments, can be critical.

Be sure any product you purchase is clearly marked as moisture-wicking. If you have any doubts, ask the salesperson. Also be sure the fabric does not contain cotton or cotton blends. Cotton retains moisture readily and evaporation from cotton takes much longer.

Today, just about every type of athletic apparel has been made using these wicking fabrics. If you have suffered ill effects from perspiration, you should seriously consider wearing apparel that utilize these fabrics. Even if you don’t have these problems, these fabrics may help improve your performance by helping you remain cooler and more comfortable during exertion.

Comments

maria 2 years ago

Why would it be better to have the sweat AWAY from the body when the sweat on your skin is attempting to cool you down. It would seem to me that having the sweat on your skin is what the body needs to do to cool down. Why are you trying to take that away? If it's merely a question of chaffing and fungus, ok, but dry wicking is not good for keeping the body cool.

Richard Stephen profile image

Richard Stephen Hub Author 2 years ago

Thanks for your comment. Chaffing and fungus are part of the reasons. Normally, sweat helps cool the body by carrying away body heat as it evaporates. It is the act of evaporating that carries away heat energy. If you think about it sweat helps cool the body not because it is cool but because it is excreted from the body hot taking body heat with it. The faster hot sweat can be removed from the body the more efficient the cooling. Moisture wicking fabrics help cool the body by wicking heat laden sweat away from the body quicker than it would by natural evaporation. Thus, these fabrics actually help facilitate body cooling.

Mark 24 months ago

Richard. Sweat cools the body when it evaporates from the skin. The latent heat of evaporation of water is considerable. Cooling has nothing to do with the temperature of the sweat. So what you want for maximum cooling is wet skin, and circulation of air across the wet skin. A soaked shirt will stifle air circulation. So the wicking fabrics should leave some moisture on the skin and be "breathable".

Richard Stephen profile image

Richard Stephen Hub Author 24 months ago

Mark, thanks for your comments but I believe that is what I said. However, sweat cools the body in more than one way. It helps cool the body by carrying away body heat as it evaporates. This is an endothermic process during which heat from the body is absorbed by sweat and used to break the water molecules in sweat into its component gases causing evaporation. This expends heat energy.

Sweat also removes heat from the body mechanically, so to speak. Sweat, by definition, is excreted warm. The physical act of secretion also removes heat from the body which is then enhanced by the endothermic process of evaporation.

As I said, moisture wicking fabrics help facilitate cooling by wicking water away from the body and facilitating evaporation. Water will evaporate quicker when humidity is low. That is why people overheat more easily in 90% humidity than 30% humidity. It is also why a wet shirt stifles cooling, it acts likes high humidity. It is also why It is also why fanning helps facilitate cooling by removing humidity laden air from around the body.

I think we are on the same page here just getting caught up in semantics. Thanks again, Richard

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