Here’s what you need:
Two 9 1/2” x 5” strips of cotton print
Two 9 1/2” x 5’ strips of lining fabric
Cotton thread to match
Setup your sewing machine for regular sewing. Attach the zipper foot. Select a straight stitch and set the length to 2.5mm. Sandwich one side of the zipper between the cotton print and the lining fabric, with right sides facing and stitch together.
Pull the two layers to the right side and press. Sandwich the other side of the zipper tape in the same way and stitch .
Open the zipper at least 3/4” of the way.
Pull the lining to one side and the fabric to the other. Pin the fabric sides together, with right sides facing. Repeat with lining. Stitch together, leaving a 2" opening on the lower edge of the lining for turning.
Line up the side seam with the seam along the lower edge. Measure 1" in from the tip of the corner. Mark a line across as a guide; and then stitch across the marked line. Trim the point leaving a 1/4” seam. Repeat with lining.
Turn to the right side. Fold in the seam allowances on the opening in the lining, and then topstitch the opening to close. Tuck the lining inside the bag and press.
Fill and zip closed.