David's Bridal slip style #795 in size 10, retail price $59.95. Tag says size 10 and their web site says they run small so go by the 27" waist for fit.
description:
This full slip enhances ball gown silhouettes and features a zip-up power net waist and lace trimmed bottom.
Slip only, top not included. Their web site says a 27" waist for a size 10 slip. Also, "runs small; order one size up."