Make a pattern out of kraft paper. You can also use old wrapping paper or newspaper. Adding one inch for seam allowance. We made our pattern to be 9” x 7”, for a finished measurement of 8” x 6”. Cut out the lining first. You’ll need two pieces so fold the fabric in half pretty-side facing. Trace the pattern with the fabric marker. Pin the plastic on the outside of the line you traced and cut out the two pieces at once. If there’s a specific design on the fabric you may want to center the pattern and cut out the plastic pieces one at a time.
Before you cut the exterior fabric, you may need to strengthen it by using fusible fleece and an iron. Trace the pattern onto the fleece twice and cut out two pieces. Make sure to set the iron to the right temperature for the type of material you are using. Place the fabric pretty-side down and the fleece adhesive-side down (the rougher textured side) on enough of the fabric to make two rectangles. Iron until the fleece and fabric are bonded together.
Place the zipper foot on your sewing machine so you can sew the top edges of the bag to the zipper. First assemble the pieces. Place the outer fabric on the table with the pretty-side facing up. Lay the zipper on top with the zip tabs facing down. Line up the top edge of the zipper with the top edge of the fabric. Then place the lining fabric on top, pretty-side down. Line up the top edges, so the zipper is completely covered. Pin it all in place.
Use the zipper foot on your sewing machine, sew the top edge along the length of the zipper. You may have to move the zipper slider while you’re sewing to keep it flat. Always remember to backstitch at the beginning and end of a seam to keep it from unraveling.
When all four pieces of fabric are attached to the zipper with the pretty-sides out, switch to your normal sewing machine foot and top stich the zipper to make sure the seams lay flat and the fabric doesn’t get stuck in the zipper teeth. Keep the fabric nice and tight, and sew the length of the zipper. You can see this thread on the finished bag, so make sure it’s a pretty color.
Lay out the bag so that the two pieces of outer fabric are together, pretty to pretty, and the inner fabric is together, pretty to pretty with the inner fabric on top. Pin the fabric together, starting with the inner lining. Pin the fabric on the sides perpendicular to the edges and then place two pins perpendicular to the top edge of the inner lining. Place two pins three inches apart from each other on the bottom of the lining. This will be your guide when you’re sewing to stop and leave a three-inch gap so that you can turn the bag right-side out later. Sew all the way around the inner lining, with your sewing machine foot as a guide and making sure to back stitch at the beginning.
Open the zipper halfway. This is very important, otherwise you won’t be able to turn the bag right side out after the next step. Pin the outer fabric pretty to pretty and sew all three sides. Once it’s all sewn up, turn the bag right-side-out. Stick your fingers through the hole you left in the lining, then through the hole into the zipper. Bring the fabric all the way through.