Cashmere wool, usually simply known as cashmere, is a fiber obtained from cashmere goats and other types of goat.
Common usage defines the fiber as wool but is finer and softer, giving its characteristics as compared to sheep's wool. Some say it is hair, but as seen below, cashmere requires the removal of hair from the wool. The word cashmere is an old spelling of the Kashmir region in northern India and Pakistan. Cashmere is fine in texture, strong, light, and soft. Garments made from it provide excellent insulation, approximately three times that of sheep wool. Cashmere is also softer than regular wool.
In the United States, under the U.S. Wool Products Labeling Act of 1939, as amended, (15 U. S. Code Section 68b (a)(6)), states that a wool or textile product may be labelled as containing cashmere only if:
• Such wool product is the fine (dehaired) undercoat fibers produced by a cashmere goat (Capra hircus laniger);
• The average diameter of the fiber of such wool product does not exceed 19 microns
• Such wool product does not contain more than 3 percent (by weight) of cashmere fibers with average diameters that exceed 30 microns.
• The average fiber diameter may be subject to a coefficient of variation around the mean that shall not exceed 24 percent