Can be divided into 3 main types of fibers according to the material:|Made from 100% sheep’s wool, very good quality, very soft and warm. The price of this wool is quite expensive. Industrial wool yarn|Produced from chemically synthetic fibers, so it can have many different colors. Depending on the processing technology, the quality and price vary. There are many types of good quality and soft yarn not unlike wool. Because of its ease of production, this wool dominates the market.|Made from cotton, like the fabric of a shirt. The feature is that it does not stretch much and does not retain heat like industrial wool or fleece, so it can be used to knit a coat hanger for summer wear. In addition, there are many wool yarns that mix a little bit of one material with another, for example wool blends or cotton blends etc. And depending on the manufacturing method, it can produce ruffled, iridescent wool, 1 multi-colored mixed yarn, etc.|The yarn consists of 2 thin strands twisted together. This yarn is often used for crocheting thin and tight products such as gloves, socks, etc.