Instantly trims waist with slimming compression design. The Slim Trim waist slimmer belt can help tone the mid section by increasing perspiration and providing support to the lower back. Tone your curves, abs and trim inches off your waist with the waist slimmer belt. A tried-and-true method for reducing unwanted inches by using body's natural heat, the belt helps shed excess water as you exercise. Made of soft durable neoprene for comfort. The hook-and-loop closure provides a snug fit. Thin enough to wear underneath clothing!