SHAPE YOUR BODY: The scientific design and compression help you correct posture, flatten abdomen, firm tummy and love handles leading to a more molded figure and visually trim. SOFT & COMFORTABLE: The special Neoprene material provide instant abdominal compression and lumbar support, allow you to have the proper support without any discomfort. HELP YOU SWEAT MORE: By preserving your body heat and heating up your muscles, the neoprene sauna vest makes you sweat triple than usual, So Make Sure To Drink Plenty of Water Before, During, and After Exercising. it`s helps you reach your fitness goals faster and easier. MATERIAL & DESIAN: 70% Neoprene, 15% Polyester, 15% Nylon. Zipper Free & Open Bust design provide comfortable fit and push-up, allow you to have full-freedom to move while working out. SIZE NOTES:The vest was designed to lose weight, it\'s not like your daily clothes but true to size, please pay special attention about it and refer to the Size Chart in the image section in the left to choose your right size. To have a better weight loss effect,suggest choose One Size Smaller than your daily size,that will help you better.