Mother of the Bride Formal Gown 5061NX-STEEL Back zip. Chiffon and lace gown with matching jacket. PLEASE use size chart to the LEFT under the small pictures. Expect and plan for alterations for a perfect fit. If you need help with sizing, please contact Belle Maids and we will be happy to assist you. Formal gowns run at least two sizes smaller than off-the-rack dresses. PLEASE take your measurements prior to ordering!