Trousers are a staple of many wardrobes, and the material they are made from can vary greatly. Common materials used for trousers include CHINO, KHAKI, and TWILL. CHINO is a lightweight cotton fabric, usually in a plain weave, that is often used to make trousers. KHAKI is a type of fabric that is usually made from cotton or wool and is often used to make military uniforms. TWILL is a type of fabric with a pattern of diagonal parallel ribs that is often used to make trousers.