This step can be as simple as folding the fabric in half twice and stitching, but I just couldn’t. The problem was really in my cutting. I, once again, paid no attention to the print of my fabric when cutting out my strap, which is amazing since there is so much extra fabric left over. Depending on your fabric print this may be a no issue. I also found the strap to be a little wide, so I cut out about 2 inches and centered by fabric print down the strap.
The pattern instructs you to sew a seam down the 2 long sides, but I decided to add a third seam right down the middle, but do as you please. Happy strapping.