The Waist Trainer is made from natural latex. The latex reduces impurities and fat around your waist. The Waist Trainer also strengthens your core and posture. The heat that is generated while you are wearing the Waist Trainer makes you sweat more and mobilizes your fat. Latex: Most high-quality waist trainers, also called cinchers, are infused with this stretchy but firm material. The reason is that latex is pretty unbeatable as far as the amount of compression it provides and its durability.