Black halter underbust corset with steel busks closure in the front from Bonitaz-Corsets. 2 Flat Steel Bones in the front, 10 acrylic bones through-out. This corset is a great balance of strength to cinch in the waist, while offering comfortability for long usage. XLarge. Waist: 30"-32" Bust: 38"-40" US Dress Size: 8-10