200-300g. Jeans are large and small, fabrics are thin and thick, and the weight of jeans with velvet is different. Jeans, also known as "solid tweed trousers", are a kind of trousers, which were invented by jakob davies and Levi Strauss in 1849. Originally work pants worn by early pioneers in the western United States, they gradually became casual pants for men and women. Jeans are generally made of indigo water mill fabrics such as denim, which have the characteristics of wear resistance and dirt resistance. They are fashionable and comfortable to wear, and are loved by young people.