Jeans are trousers made from denim. Mainly designed for work. Today, jeans are a very popular form of casual dress around the world and come in many styles.jeans are high-fashion jeans that are marketed as status symbols. The Nakash brothers are generally credited with starting the trend when they launched their Jordache line of jeans in 1978. jeans are cut for women and men and are often worn more fitted than low quality jeans, though relaxed cuts are available. They typically feature prominently visible designer names or logos on the back pockets and on the right front coin-pocket.