Camel wool fibre is fine and soft, it is an excellent thermal insulator and has greater hygroscopicity than sheep's wool. Camel wool fibre is a material of natural and renewable origin. As with all fibres of animal origin, it is important to select raw materials from certified farms. Camel wool is a very valuable fibre, which derives from the coat of animals called double-humped "Bactrians", widespread in Central Asia and known for their twin humps and long, bright coat. This type of wool is not obtained by shearing, but by brushing.