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Why dense fabrics hold heat better
Short answer: A dense fabric lets less air through. The warm air at the skin stays put, and the cold air from outside...
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How wind removes insulation
Short answer: Wind blows the warm air away from the fabric and pushes cold air into it. The insulation leaves with th...
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Why heat escapes at the neck
Short answer: The neck is thin, rich in blood vessels and rarely covered. Warm air under your clothes rises and escap...
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What body heat does to a layer of clothing
Short answer: The body gives off heat all the time, and clothing slows it on the way out. After a few minutes the fab...
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Why the feeling of cold disappears after a minute
Short answer: The first coolness is heat moving from your skin into the fabric. Once the fabric reaches the same temp...
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Heat conduction in a fibre
Short answer: All fibres conduct heat, but they conduct it slowly, and the differences between fibre types are small....
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Why two thin layers warm more than one thick one
Short answer: Between two layers an extra air space forms. That space insulates in itself, and that is why two thin g...
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The air layer between skin and fabric
Short answer: Between the skin and the fabric sits a thin layer of air that the body warms. That layer is the single ...
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How a fabric insulates
Short answer: The fabric does not insulate by itself. It holds air, and it is the still air that slows heat on its wa...
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Air in the knit and what it means for warmth
Short answer: It is not the yarn that warms you, but the air between the threads. A knit that holds air still insulat...
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Long against short sleeves in the sun
Short answer: A loose long sleeve in a thin fabric can be cooler than a short one, because it keeps the sun off the s...
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Loose against close fitting in heat
Short answer: Loose clothing is cooler outdoors, because air can move between fabric and skin. Close fitting is bette...
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