Fiber Length and Fineness: One of the key indicators of a good cashmere sweater is the length and fineness of the fibers. Genuine cashmere fibers are longer and finer than ordinary wool, which contributes to their softness and superior insulation. Look for sweaters made with longer and thinner fibers for the best quality.
Softness: Authentic cashmere is renowned for its extraordinary softness, often described as touching a cloud. When examining a potential sweater, run your hand along the fabric. Genuine cashmere will feel incredibly soft, with a luxurious texture that instantly sets it apart from synthetic substitutes.