Medium weight woven fabric such as quilting cotton, broadcloth, chambray, flannel, and shirting.
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All-purpose polyester sewing thread, sewing machine needle, 1/2 yard (.5 meters) of batting, one coil zipper (18" version 1, 16" version 2, 14" version 3, 12" version 4).
Refer to size chart for amount of fabric needed for your size.