Usaya-shaper Waist Trainer Corset Tummy Trainer Belt Body Shaper Slimming Sport Imported Location: CA, United States--Ship by UPS Mail Innovations,2-7 Business Days Delivery Condition: Brand And High Quality, New With Tags,Low Price,Best Service;Material:90% POLYESTER And 10% SPANDEX BEFORE ORDERING: We are not standard USA size, don't use amazon size chart. Please Careful Reading Our Size ChartExample #1: XS Szie for Waist 23.6"-26" mean: "XS size fit your Natural Waist 23.6-26inch", Example #2S Size for Waist 26"-28.3" mean: "S size fit your Natural Waist 26-28.3inch" 4 Spiral steel bone, which is the fins material inside the corset. It's flexible and durable,can bend easily but recover quickly to origin. High elastic free support,helps with weight loss,reduces waist size,helps with posture Please refer to left picture for detailed information and allow a little inaccuracy due to hand measure