Posfect Waist Trimmer Exercise and Workout Belt for Women and Men with Very Effective Back Support. 100% Neoprene, One Size Fits Most, Very Comfortable & Light Weight Design. Velcro closure provides easy, and very comfortable; no scratch, fit. It may be worn under or over clothing. 1 size fits most, up to 41 inch waist. Adjustable waist trimmer belt is made of 100% neoprene durable fabric designed to withstand strenuous workouts and multiple washes. This great belt targets and tones the mid section while also supporting the back muscles. It's designed to cover the entire stomach area while targeting your abdominal muscles to burn more calories and quickly lose water weight. It will help you lose weight in inches and enhance your workout. Professionally engineered to retain body heat in the waist area to remove excess water weight during workouts. Back pains will be history with this awesome waist trimmer. Itll strengthen and support your abdominal and back muscles. Its designed for anyone either doing a workout, driving, lifting or simply sitting in the office. Get yours NOW!