The heat-conserving property of wool is due to the texture of its fibre – the heat – due to which small air chambers are formed in it. Stagnant air is a heat insulator and since woollen fabrics are made of numerous fibres within which the stagnant air is stored, they are also very good insulators of heat. Oswal Micro Wool also has the amazing property of absorbing water vapour. The amount of water vapour in wool depends on the pressure of water vapour in the atmosphere at that time. When wool absorbs water vapour, heat is released. This heat is enough to keep the air entering it warm. Apart from this, the elasticity of woollen fibres due to heat, as a result of which the inner cloth does not stick to the body and a thin layer of air is produced between the body and the cloth which acts as a good heat protector.
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