Product Description Our smart waist trimmer belt with comfortable fastener tape closure for an easy, adjustable fit is designed to preserve body heat, promote water loss and provide extra back support during exercise. Quality neoprene construction makes it comfortable, lightweight, durable and virtually care-free. A great addition to your fitness gear. Tighten your tummy with the Wonder World waist trimmer belt, which is designed to preserve body heat, promote water loss, and provide extra back support during exercise. The waist trimmer's quality neoprene construction makes it comfortable, lightweight, durable, and washable