A reflectorized vest is a type of protective gear used in rescue operations. It reflects heat away from the body, keeping the person wearing it warm in cold water or potentially hazardous environments. It is typically made of high-density foam or materials that are waterproof and buoyant. The vest may also feature reflective stripes or markings for visibility in low-light conditions. These vest are available in different styles, sizes and colors. They are often used in combination with other safety equipment such as dry suits, helmets, and life belts.