DODOING Women's Breathable Waist Trainer Cincher Underbust Corset Body Shaper Please choose it from our Size Chart located on the left of the product image.If you actual size is between two size,we suggest you choose the big size. Material:90% Polyester and 10% Spandex; Height:25cm 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 Made from stretchable, breathable, and lightweight materials, seamless technology, no-trace, comfortable, suitable for all seasons We Ship it by ePacket, usually 7-15 business days