I just looked up the pattern and it is a button closure in the back. Then if you look at the pattern it will tell you to 'Cut 2' which means you don't cut on the fold. The front is usually 'Cut 1 on fold' and there would be arrows pointing to the fold. This is an advanced pattern and it is very important to read all the instructions before you start and follow the layout for cutting shown on the instruction page. If you need more help you can PM me.