Question

why does sweater consist of wool

Answer 1

Wool manufacture begins with shearing the sheep. ... This process removes sand, dirt, grease, and dried sweat from the fleece. Next, the fleece is carded—passed through a series of metal teeth that straighten and blend the threads into slivers. Carding also removes residual dirt and other matter left in the fibers.

Answer 2

Wool fibers form air pockets in the woven cloth providing natural insulation. Wool keeps you warm in the winter, but it can also keep you cool in warmer weather. It wicks moisture away from your skin, keeping you dry and comfortable.

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