Rain or Shine Solar Charger

Step 4 Align the zipper and flap

The next step is to roll/fold the fabric such that the flap is flat and covering the zipper, and the edge of the flap is aligned inside the edge of the loop of fabric. We're inside-out at this point. Use a pair of pins through the outside seam allowance, because its critical to have the alignment right here. Once everything is alogned right, use you fingers to press a crease into the top and bottom of the fabric.