When the vapor emanated from the skin surface can not easily permeate to the air, it will form a high humidity region between the skin and the fabric which makes people feel mugginess and discomfort.

当体皮肤表面散热蒸发的水汽不易物陆续排出时,就会在皮肤物之间形成高湿区域,使闷热不适,因而服用物尤其是内衣,必须具备良好的吸湿湿性能。