Generally speaking, cashmere products can be divided into pure cashmere and cashmere: pure cashmere products contain more than 95% cashmere, cashmere products contain more than 30% cashmere, and cashmere products with less than 30% cashmere cannot be called cashmere products. Therefore, when buying cashmere sweaters, we must carefully identify them. The usual methods are watching, weighing and pinching. At first glance, look at the brand first. First of all, we should choose a brand that stresses credibility, quality and reputation, which can save a lot of troubles and worries. Never choose cashmere products without factory name, trademark and cashmere content. Then look at the product quality. High-quality cashmere sweater, with soft luster, full suede and strong wool feeling, has a fine layer of cashmere on the surface after shrinkage, and the density of horizontal and vertical loops is uniform, which is more obvious under strong light. Second, weigh it with your hands when you buy it. Because cashmere is a very soft fabric and lighter than wool, it is a simple way to distinguish cashmere products from wool products by picking up the products and weighing them. Three pinches, that is, pinching by hand. Cashmere sweaters have a strong sense of fluff and excellent elasticity. When you buy them, you can pinch them by hand and observe their elasticity, which is not only a way to identify the authenticity, but also a way to identify the pros and cons.