How to Add a Corset Back to a Dress That's Too Small Too Much Love EVEREVE Women's Sunday Gingham Dress, Size XL, Black Altering a thrifted dress to fit with corset back Altering a dress with a corset kit How to alter a wedding dress with mesh and beading to add room in the back? This is how to add a corset back lace up kit to your dress! This is a great solution to your tops and dresses that are a bit (or a lot) too tight.