No, jeans belong to the 25th category of 250 1 clothing. Jeans are external clothes. Class C stands for textiles that can't directly touch the skin, so bull-shaped pants are not Class C. Jeans, also known as "solid tweed pants", are overalls worn by early pioneers (cowboys) in the western United States, and are generally made of blended interwoven yarn-dyed denim dominated by pure cotton and cotton fibers.