Rhonda Strappy Back Slit Glitter Formal Dress Windsor Step by Step Tutorial for Making a Slit in a Dress or Long Skirt ehow Tailor Tips: How to Add a Stylish Slit to Your Dress How to add a slit where you don't have a seam. I had made a dress but wanted to add a slit to it once it was done, so didn't have a Luuvis Women Gorgeous Blue Mermaid V Neck Long Lace Prom Dress With Slit Front Cut Out Long Mermaid Prom Dress: Atria 6869H Kelly XSmall