Designed for light to medium weight woven fabrics. Suggested Fabrics: Broadcloth, Cotton Types, Chambray. Designed for light to medium weight woven fabrics.Thread. View A, B: 1 yd (1.00 m) of 38" (1.0 cm) wide elastic. View B: One 12" (1.3 cm) button. View C: One 7" (18 cm) zipper, one hook and eye closure.