Purple Brocade Steel Boned Tight Underbust Corset Waist Shaper SC10012 Fabric: Jacquard. Lining: 100% cotton. Hook and Eye closure Dry clean only High quality authentic steel boned corset Fully lined with 100% cotton. Back lacing with steel front busk closure 10 spiral steel bones and 4 rigid steel bones around the grommets for reinforcement for tighter lacing.