80% Neoprene, 20% Nylon Imported Zipper closure Machine Wash MAXIMIZE TIGHT CONTROL & ADJUSTABLE STRAPSWaist trainer for women is designed with 3 rows of hook and eye closures and 2 adjustable shoulder straps to ensure you get the maximum fit and get a sexy natural curve. You can also change the straps to X-Cross style, it will be more fashionable and provide more compression to get better shaping results. EFFICIENT FAT BURNING & BACK SUPPORT This neoprene sauna vest waist trainer makes you sweat like crazy and enhance your workout to achieve your weight loss goals. Women's sauna tank top can flatten the abdomen, reduce the waist, support the back, improve postpartum recovery, improve posture, relieve waist pain, protect the spine, and accelerate fat burning during exercise. U-SHAPED PUSH-UP BREAST DESIGN The waist trainer for women lower belly fat with special U-type anti-droop design on the front makes your chest more upright and attractive. This corset body shaper has built-in steel bones for a perfect fit and gives you strong back support. PREMIUM NEOPRENE MATERIAL Waist trainer for weight loss is made of top quality neoprene and nylon, which is smooth, healthy, and moisture-wicking, helps you burn more calories, for healthy prompt weight loss effect. The waist cincher is also elastic and stretchable, flexible and breathable and comfortable to wear. NOTE: If you are allergic to neoprene, we advise you not to wear this zipper waist trainer.