100% Latex Zipper closure High Quality durable Latex waist trainer corsets with 7 spiral felixboning supports,flexible and durable,bend easily, it will more stiffness and keep you in best posture. It's flexible and durable, can bend easily but recover quickly to origin. The underbust waist trainer with Hook and Zipper closures to keep tight fit as you lose inches; Can be used for yoga, postpartum belly abdomen corset etc.It will promote your WEIGHT LOSS whenever in workout or working. High compression and reduce your waist line by more than 3 inches if you insist to wear it. It helps to boost thermo activity, put it on when you workout, it will have a better effect Material:Core:100% Latex,Lining:96% Cotton+4% Spandex. Flatten abdomen, Speedup fat burning, Reduce inches instantly; Cotton lining ensure that this waist trainer could have a great function of sweat-absorbent when you taking exercise. Great for reshaping post pregnancy tummy and comfortable to wear all day and improves your posture for an elegant look; You can wear the waist cincher under tight dresses.Latex waist training cincher could help you keep a slim figure and help you lose weight.The molding pressure and the sauna effect will help to make this product your best Waist Trimmer.