2 pieces of 12"x18" fabric (coordinating or matching, whichever floats your boat)
12 1/4" x 4 3/4" fabric piece for the crayon pocket
12 1/4" x 9" fabric piece for the notebook pocket
12" x 5 1/2" fabric piece for the sticker pocket
Iron-on interfacing for the two larger pieces, the crayon pocket, and the notebook pocket.
20 inches of webbing strap
(There is velcro in the picture, because I originally planned to put a velcro closure, but decided to omit it)
After you've cut your fabric and interfacing, fuse the interfacing to the fabric, following the manufacturer's directions.
Turn. (Sorry for the blurry shot!)
Push out the seams and the corners to make sure they all look nice and then iron it (making sure to fold in the seam allowance of the hole you left to turn it through).