Sweat More: An undershirt made of neoprene that heats up quickly, which increases sweat and helps your body shed harmful fat. Allows you to build muscle faster and easier.SHAPE YOUR BODY: The waist training tank top uses compression fabric to help you correct your posture, flatten your stomach and support your lower back. Quickly sculpts your slimmer silhouette. Whether for bodybuilding for yourself or as thermal underwear, shapewear tank tops are the best.COMFORTABLE, LIGHTWEIGHT, EASY TO WEAR: The sports vest with middle zipper, breathable, smooth, lightweight, stretchy fabric makes you feel comfortable all the time. In addition, the soft and highly elastic fabric makes the thermal sweat vest easy to put on and take off.Premium Material: Micro-perforated and SCR neoprene polyester ensures effective thermoregulation, not only increases body temperature but also absorbs sweat to keep you dry at all times and avoid rashes due to sweating.