GOGO Abdomen Slimming Trimmer, Elastic Waist Training Corset Our size is not standard US Size. Please check our SIZE CHART in the description or image to get the perfect fit. Kindly suggest you to order two sizes up than what you usually wear. Material: Spandex. Stretchy waist belt creating the appearance of a flattening belly. Back support. Relieves your fatigue and discomfort.