1. Uses a heat-trapping polymer fabric to increase your body's natural heat and stimulate sweating with any type of physical activity. Wearing the waist trimmer while exercising or doing daily activities creates a hot sauna-like experience. Your body temperature will increase, so you will sweat more and lose water weight and shed pounds at lightning speed. Increased sweating also helps detoxify and cleanse pores. 2. The waist trimmer has been designed to be incredibly lightweight and comfortable to wear even for long periods of time, while providing all the muscle and core support you need. It shapes and moves with your core and waist during gym workouts, yoga, cardio, cycling, or just running errands. It is exceptionally flexible, versatile and discreet. 3. The proprietary blend of fabrics has been carefully selected to create the ultimate waist trimmer for an enhanced sweating experience. The waist trimmer consists of two layers: the internal thermogenic polymer fabric increases core temperature to promote sweating for faster water weight loss results. Outer performance compression fabric instantly slims and shapes your body, and compresses your abdominal and waist area. Size: SM, L-XL, 2XL-3XL Inner layer: Thermogenic polymer fabric increases core temperature Outer layer: Compression fabric instantly slims and shapes your figure Shipping list: 1pcs body shaping belt Notes: 1. Please allow 1-3cm difference due to manual measurement and 3-5g for the difference between different colors. 2. Due to the screen difference, the color may be a little different from what you expect, please allow it.