You may luck out and fall in love with a modest Prom Dress Shoes that they carry, or you may find a gown that can be altered for modesty by adding sleeves or a chemise underneath. Talk to the salespeople about your needs and see if they can help you. It may be that they carry "less popular" Backless Wedding Dresses with sleeves in the warehouse and just need to order them in your size. Even if the wedding gown you ultimately select is modest, it still might not be "temple ready." A wedding dress that can be appropriately worn inside the temple for the sealing ceremony is: White, Long-sleeved, Floor-length, High necked (no collarbone showing) and No train. If you don't want to wear long-sleeved Formal Party Dresses, don't panic. You can always wear a duckier or faux sleeve inserts provided by the Temple underneath your dress for the sealing, or you might opt to change into a plain white temple dress for the sealing.