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
Punk rock n roll style overbust corset, made by satin fabric, attached 12 plastic boned for body support, tradition zipper closure in front, add buckles closure for strong waist cincher, ribbon lace-up back for cinching
Heavy strong steel boned overbust corset features 10 flat steel bones plus 4 spiral steel bones; Spiral stripe shape design, zipper at side, buckles decoration trim, cord lace up back for cinching; Slim fit.