When I first looked at the pattern for the AeroPacs, I thought they were pretty cool - but I was a bit apprehensive about all that bias tape - especially since I was multiplying it by 12.
So true to my typical form - I changed the pattern a bit. I cut all the pieces about 1/2" wider than the pattern indicated.
On the angled pockets I topstitched for stability instead of adding bias binding.
On the straight pockets I used Velcro Fusion so I could just add it in later.
I created a strap from 2" wide fabric - pressing it in half, pressing each side in, and then stitching once down the middle.
I basted the top velcro flap to the top of the front, and the angled pockets to the side of the back.
I omitted any batting.
To assemble, I pinned the strap in place at the top front, about 1/2" in from each side, and then lay the back on top of it, wrong sides together. I started stitching at the strap, back-stitching for strength, and stitched 1/4" all the way around. I trimmed with pinking shears and turned right side out.
After pressing I top-stitched just along the top edge of the pouch to close the seam allowance.
No bias binding, no fuss, no muss, no bother - just a bit more bulk at the sides.
I would do it again this way.