Turn the pleated mask face down, and place a fabric tie on one side of the mask, where the main fabric extends past the lining. Fold the main fabric excess over the tie twice.

Fold the edges of your fabric tabs over 1/2 an inch or more and stitch 1/4 an inch from the edge to create a tunnel for the elastic. Feed the elastic through the tunnel (a safety pin attached to ...

Fold each piece of fabric twice lengthwise, then once more to tuck the rough edges inside. Sew a straight line along the middle. This will prevent the fabric ties from having frayed edges.