The tank top trainer is made of Neoprene for workout exercise, accelerating weight loss.The neoprene fabric will increase core temperature and keep your body warm,burn extra tummy fat by heating up your abdomen,also increase calories burner for a more effective workout,reducing your abdomen and waist.Vest weight with 4 hooks allows you to adjust the compression you need. This body trainer with underbust design which help the breasts push up,effective firm control of armpits & back flabby fat. Weight loss top also helps to support your lower back, wide straps will take the pressure off of your shoulders and instantly correct your posture.Double layer high compression design,the inner layer work as tuck belt flatten your stomach, trim your tummy waist.Outer layer compresses bulges on your abdomen to create smooth without rolling up,enhances your workout and shape your waist to be more slimmer,can be worn under everyday clothes.Maximize shape a hourglass waist with this waist cincher top ,acts like a compression binder around the waist to offer abdominal compression and lumbar support,improve posture,relief waist pain,protect spine. Exercise weights vest is great for reshaping postpartum recovery get your body back to its former post childbirth,create the best posture for healing.Wearing tips: The neoprene smell of the weight loss sauna suit is normal,it would be easy gone after a few times hand washes in cold water with a soft detergent , hang dry to maintain shape. If any question about our workout clothes suit,please feel free to contact us,we will try our best to solve it.