Black Workout Underbust Steel Boned Corset Waist Training Cincher Shapewear 100% Natural Latex Rubber Covering;96% Cotton+4% Spandex Lining. Three rows of hooks closure High compression.It will also works for LONG TORSO.It helps to reduce 4-5 inches in waist when you wear it. Latex Waist Shapewear come with 4 pcs spiral steel bones,it will keep you in best posture.It's flexible and durable,as soft as plastic bones,can bend easily but recover quickly to origin. Occasion:The latex waist training corset can be used for casual,gym workouts,yoga and promotes a quick post pregnancy recovery. Please don't use amazon size chart.please use our advice size chart,*For correct fit please use the SIZE CHART provided in the photo on the left side.Waist cincher must feel very tight for it to work,if between sizes,choose larger size. Money-back satisfaction guarantee *Our money-back guarantee is 30 days.