It's fastened with an invisible zip in the back , all raw edges were zigzagged for some reason that I can't remember and I used an awesome floral bias binding for the hem which I bought when I first started sewing and only now have had the right project to use it on! I had just enough.
All in all, it's a great skirt and I feel great wearing it!
Thanks for reading and to Ed for taking pictures! We moved to a different corner of the garden today.