Lace up back Corset Dresses Weddings, Wedding Attire Wedding Forums WeddingWire Corset Size Chart Dark Garden Unique Corsetry, Inc. FYI Corset back wedding dresses are still just one size. There's a set width the back lacing needs to be, if you're a 16 and the dress is a 12, the gap FYI Corset back wedding dresses are still just one size. There's a set width the back lacing needs to be, if you're a 16 and the dress is a 12, the gap