Biker's wear typically consists of LEATHER, lycra and a HELMET. LEATHER is a durable material that is often used to make jackets, pants and other protective clothing for bikers. Lycra is a lightweight fabric that is often used to make shirts and other clothing that is designed to fit snugly and provide comfort while riding. A HELMET is an essential piece of safety equipment for bikers, as it helps protect the head from injury in the event of an accident.