Cashmere yarn is a yarn woven from cashmere, known as "soft gold". Compared to wool, cashmere yarn has the characteristics of being light, soft, thin, and warm, making it suitable for personal wear. Cashmere fiber is obtained by combing and grasping the wool covering the long hair on a goat, with an average fineness of 15-16 microns, which is the smallest among wool fibers. The strength, elongation, and elastic deformation of cashmere are better than those of cotton wool. Therefore, compared to pure wool, the advantages of blended wool and cashmere are: soft to the touch, comfortable, lightweight, and not easy to fade, with good toughness. In addition to these, it also has the unique excellent elasticity of wool, such as a full feel and high warmth retention.