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When working out or participating in sports, many athletes and recreationalists choose to wear clothing made of wicking material, which pulls moisture away from the body to keep the athlete dry and comfortable. Some clothing made of wicking material is waterproof as well, keeping outside moisture from precipitation, etc. away from the body. The general idea behind wicking-type material is to keep the skin dry and comfortable to avoid chafing and swings in body temperature.
Synthetic fibers such as polyester and even teflon are often used to make wicking materials that are lightweight and comfortable, though natural fibers such as wool also wick moisture effectively. Wool tends to be less comfortable than some of the synthetic materials, however, and though cotton can wick moisture to a certain extent, it is very slow to dry and is better used as a middle layer.
This material wicks moisture by encouraging a capillary action — that is, the material uses a tube-shaped pattern to encourage water to move away from the skin. Water generally moves downhill toward gravity like other substances, but when moving through tubes, it tends to move upward, away from gravity. When water makes contact with the tiny tube-shaped fabric, the moisture is pulled from the skin and into the tube, keeping the skin dry.
Clothing made of wicking material is typically, though not exclusively, used in a layering system. For example, when participating in winter sports, many people will wear a base layer — a layer of clothing closest to the skin — to wick moisture away from the skin. This base layer will then be worn beneath a warmer middle layer and a waterproof outer layer, thereby providing warmth, waterproof ability, and wicking ability. This is the best combination for outdoor sports in which the wearer must stay warm and dry. Keeping the moisture away from the body keeps the wearer's body temperature from fluctuating due to cool moisture building up on the skin.
Summer athletes use clothing made from wicking material as well, either with layers or by itself. Thin wicking material can be used to make sports bras, shorts, athletic t-shirts, and socks, which can all be used in conjunction with other layers or simply worn alone in warmer conditions. Moisture wicking socks are particularly helpful, since blisters and hot spots are more likely to form on the foot when the foot sweats and the moisture stays in contact with the skin.
@B707 - I also live in a hot climate and do some running. I used to get so hot and sweaty before I discovered wicking material. The idea is that the fabric on the inside wicks moisture away from your skin and draws it to the outside of the fabric, where it evaporates. I have a couple of t-shirts that costs about $20 each.
Wicking fabric isn't just for athletes. Anyone who works outside like road crews, landscapers, police, or just anyone who wants to stay cool and comfortable, should try wearing clothing made from moisture wicking material.
Another really neat idea is to get these special wicking bed sheets. I've read that they work a lot better than cotton sheets to keep your body temperature comfortable. I hope I can afford to get some one day! They are a bit pricey.
I have heard of this wicking fabric, but I have never bought any clothes that wick. Are they expensive? Can you wash them the regular way? I live in a hot climate and always thought that wearing cotton was the best thing to do to keep cool.
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