Latex Imported Hook and Eye closure Hand Wash Only Warning:**** Part of the products is made of latex rubber, which may cause allergic reactions. If you are allergic to latex or if you are not sure about this, please consult to your doctor for instructions before usage.**** How to choose Correct Size? - Please measure waistline and read the Left Size Picture first,we kindly recommend that you measure your size from the largest circumference of abdomen, then compare it with the size chart. Latex Waist Trainer Shapewear: Big and wide 3 columns hook-and-eye closure classic design, allow you to adjust size as necessar, make you Slim and Beautiful. 9 or 25 Spiral steel boned for waist cincher support and keep you in best posture which is flexible and durable, as soft as plastic bones, can bend easily but recover quickly to origin; If you worried about steel boned or not, you can test it with a magnet ; Can be used for yoga, postpartum belly abdomen corset etc. Upgraded 3 layers fabric: Our bustier shapewear is natural Latex rubber, it is smooth and high compression, Inner layer constructed with soft and cozy 96% Cotton+4% Spandex; Mid layer of 100% latex; Outer layer of durable Nylon+ Lycra & spandex; Covered boning in front and back for added support, smooth waistline, wearing this waist trainer can help to get rid of postpartum flesh.