Using piece of material which measures 20cm x 41cm. Fold it in half and pin at 6cm(2.5”) from each edge
Pin at 6cm(2.5”) from each edge. Stitch down edge using a 10mm seam. Do not sew between pins.
Keeping inside out top stitch down both seams.
Keeping tube inside out place elastic inside near the edges and pin in place with pieces together.
Using the slit created when stitching together pull the mask inside out so that the elastic is on the outside.
Start pleat folding from the top. Create 3 folds, pin and top stitch down the edge, return and stitch again. Snip off cotton ends.
