Outer service knowledge reading the full text >>

The main cold factors in outdoor activities are:

Convective heat dissipation: When the cold wind penetrates the inner layer of the garment and removes warm air from the surface of the skin, it causes heat dissipation; therefore, the outer layer must be windproof.

Conductive heat dissipation: heat dissipation when the body is directly in contact with an ice-cold object, especially when the inner clothing is wet; therefore, the outer layer clothing must be able to prevent the infiltration of rainwater and have high air permeability to prevent moisture from accumulating in the clothes. The inner layer of clothing can actively transmit the moisture caused by sweating to the outer layer.

Three-tier outdoor clothing program

Outer layer: must be windproof, waterproof, and breathable; in particular, attention should be paid to the waterproof sealability of the hood, pockets, cuffs, zippers, and the sealing of the sutures; the dimensions are to be able to move freely after wearing the warm layer and perspiration layer As a principle. Coats with Gore-Tex fabric are the best choice.

Warming layer: Insulation effect is provided by air trapped in the pores of clothing; multilayer clothing is more regulated than single layer thick clothing, and can be increased or decreased at any time depending on the weather or the amount of activity. With Fleece brushed flannel fabrics such as Polartec and other popular, more warm than the same weight of wool, even if there is a thermal effect when wet, and fast drying is not easy to absorb water.

Perspiration wicking: Special weaving or chemical treatment makes the inner layer hydrophobic and the outer layer hydrophilic, able to drain the sweat out to keep the skin dry. Common Polypropylene, Coolmax, Thermastat and other materials have good perspiration effects.

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