Then I even up the top of the bag part.
I measured one inch from the top of the front piece and marked and cut it.


Then take the 2 remaining small pieces of material and make thin loops out of them.
I used the serger and then ironed them flat.
You can turn over and iron a small edge lengthwise on each side, and then fold them in half and topstitch close to the edge, catching the part you turned under.
That is how I used to do it.


Then I stitch right down the center of each of these.
This holds down the part that was serged on mine. If you do a top stitch, I would run another stitch down the other side to kind of even them up.



Now it is time to put the pieces together.
First lay down the flap face up. (The part you want showing up)


Then the thin loops with the snaps go on top of the flap.


Then the bag part, again, face up.


Stitch across the top, close to the edge, making sure you catch all the material, including the loops.