ADJUSTABLE & MAXIMIZE FIRM: This sauna waist trainer is equipped with 3 rows of hook-eye-closure which offers adjustable compression levels that help reduce waistline. A High-strength Zipper gives the waist trainer a firm, wear and take off easily. The 2 adjustable shoulder Straps to ensure you could fit it at most extenet, allow you to adjust the compression you need.^ INSTANTLY REDUCE WAISTLINE: More than just a workout waist trainer, you can wear it under any dress, top, skirt and flaunt your curvy body. The flexible steel bones offer fantastic support to your back and lift your breasts, making them appear even more attractive. It also can shape your abdomen waistline, flatten your abdomen and reduce your waistline by more than 3-4 inches if you insist to wear the body shaper. No matter how you wear it, you're going to love how you look in the mirror.^ SHED ABDOMINAL FAT QUICKLY: waist trainer is best for workouts and the most comfy! The tank top trainer is made of neoprene for workout exercise, accelerating weight loss. The neoprene sauna vest can raise your core body temperature and burn extra tummy fat by heating up your abdomen, BURN MORE CALORIES IN A SHORT TIME, making you SWEAT UP TO 3 TIMES more than regular gym clothing! You should use it to get an hourglass shape!^ SAFE & CORRECTOR POSTUREsweat vest waist trainers have flexible steel bones so they're not like corset supper rigid. We've incorporated flexible steel bones like you can move you can, which will NOT MOLD YOUR RIBS, will NOT SQUISH YOUR ORGANS. Unlike others with acrylic bones, Steel bones are nicely structured and help with back & spinal support, improve posture. You can sit and stand up straighter when you are wearing it. Its very nice for your lower back and sciatica.^ WORKS SCIENTIFICALLYThe corset waist trainer primarily works by encouraging sweat from the stomach and also by encouraging the fat to displace in a certain shape, so it is more evenly dispersed rather than building up in the lower belly. The compression on the stomach will also make you feel full faster during meals, preventing over-eating, and the forced proper posture while wearing it will make you burn more calories even while doing mundane tasks, which makes the exercises more efficient.