Use heat (or as instructed) to fuse stiffening fabric to cotton batting. Repeat with other set.

With the four 18 by 8-inch pieces remaining, cut according to the attached pattern (side). With the 2 remaining 30 by 5-inch pieces, cut according to the attached pattern (bottom).

Using one patterned side piece and one plain side piece, layer the plain piece right side up, the zipper right side up, and the patterned piece wrong side up. The 18inch edge should be aligned. Sew along edge to connect in zipper. Repeat with the other side pieces on the opposite side to the zipper (the layering position should stay the same). Open zipper

Line up a pattern side piece with the patterned bottom piece along the remaining edge. The right sides should be facing each other. Sewing for the 30-inch section of the bottom (not the caps). Repeat with the other patterned side.

Repeat the above step with the plain fabric leaving a hole large enough to pull the project through on one side

Weave 5 inches of cotton webbing through one end of the buckle and another 5 inches of cotton webbing through the other end of the buckle.

Place the webbing so it threads through the 1 ½ inch hole remaining at the end of the zipper. The buckle will be inside of the project at this point – only the edges of the cotton webbing should be visible from the outside. Repeat for the other side.

Pull project inside out, use a hidden stitch to sew the hole on the plain fabric shut.