BellaSous Luxury One Slit Half Slip Underskirt - 16" 18" 20" - Nylon w/Lace Small: waist stretches from 22 inches to 46 inches Medium: waist stretches from 25 inches to 50 inches Large: waist stretches from 27 inches to 54 inches X-Large: waist stretches from 30 inches to 60 inches XX-Large: waist stretches from 34 inches to 68 inches