Material for sewing. I used denim.
Old pair of skivvies. (elastic only)
Velcro strips. (Male and Female)
Step 1: Cutting and sewing the pouch
I cut a strip of denim 8 inches tall and about a foot wide. From that I cut the parts for the pouch. Two 4X6 pieces and the strip at the bottom for the button flap.
Single stitch the bottom pieces together and go over that with a narrow zig-zag stitch.
ONLY STITCH THE BOTTOM!!!
Cut off the extra flap from the main piece of fabric and fold it in half. Sew it along all 4 edges with a straight stitch.
Step 2: Button hole
To be safe, I went over this process twice.
At this point I also sewed the flap to the backside of the pouch.
My button hole having been stitched up, it was time to cut it open. I ended up grabbing my straight razor for this because scissors scared me in this process.
Step 3: Adding the straps
Next step was to marry them to the pouch which I have still not sewn together yet. Now is the time. Place a strap on one side of the pouch in between the two halves. Sew it in while sealing the entire side of the pouch.
Repeat this process on the other side.