Corset & G-String Panties Purple 2X MSB720PR2X. From the Magic Silk Exposed collection, this style includes: Lace up corset features boning, lace trim, black ribbon bows, detachable garters, hook and eye clasps in back. Set also includes matching G-string panties. Ladies plus sizes 1-2X dress sizes 20 to 22. Corset 55% Polyester, 27% Nylon, 10% Cotton, 8% Spandex. G-string panties 90% Polyester, 10% Spandex. Magic Silk Catalog.