What's unique about it is that you prepare the fabric - whether strips or just one piece of fabric and then you construct the bag - just a couple of seams. The outside and the lining are done at the same time. Easy peasy.
Of course - I had to make changes.I added a skinny strap: cut fabric 3" x ?. I've done it WOF (42") but prefer over-the-body length of about 50". Fold the long edges to the center, then fold in 1/2. Stitch close to both outer long edges. Stitch to the side of the bag.
I did not use fusible batting. I used scraps of leftover (thinnish) batting and quilted the fabric. I did NOT use a backing fabric - just the top and batting and meandered it.
I added an inside pocket with a zipper. Here's a great tutorial for that. And here's a great source for zippers. They offer a variety of sizes and colors. I like the assorted 9" and 10". Can't beat the price = 25 zippers for $25.00.
I tried taking pictures with the idea of my own tutorial but ... you've heard it hear before - I'm a quilter NOT a photographer.