tightens and strengthens stomach muscles. Flattens the stomachSlims Waist. Suited for any aerobic exercise or weight reduction program. Get greater benefits from jogging, exercise while wearing waist trainer Waist Trimmer materials: Neoprene laminated with Nylon Support is designed specifically to encourage correct posture. Relieves pain and supports weak lumbar muscles. Valuable aid for lower back pain Can be used for long periods of time,comfortable