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. 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.