Pandolah Latex Steel Boned Straps Lingerie Waist Training Sport Vest Cincher Corset This corset is supported by 4 spiral steel bones, which is the fins material inside the corset. It's flexible and durable, as soft as plastic bones, can bend easily but recover quickly to origin. Shipping by ePacket, usually 7-15 business days. Pandolah owns its own trademarks. Trademark number:4620443. The package contains Pandolah Tag Material: Outer layer made of natural rubber and inner layer made of pure cotton. High elastic latex. Can be used for yoga, postpartum belly abdomen corset etc.