This is one hoodie I like, however, I prefer to have the choice of zip it and unzip it. I have never tried this but this is what it turned out.
The first step was to measure the very center of the hoodie. And be careful to pay attention to only cut the front piece in half!
I measured the distance from neck to bottom, it was 22 inches, so I bought a separating zipper which is very easy to work with. The only challenge could be to finish the neck. This model has an overlapping neck so I had to tuck in the edges to match them with the zipper seam allowance.
This is what it looks like now: I like the flexibility to take it in and out! This was a simple project.