1 Download, print and cut out the pattern from sewmag.co.uk. Position the pleat guide on the top edge of a folded lower skirt rectangle, then mark each position with a small clip and neaten the side edges. Repeat for the other lower skirt piece.

2 Using the guide, fold and pin four box pleats; the seam allowance should be showing on both edges beside the outer pleats. Machine-stitch across the top of each pleat to secure, then sew the darts to the two back yoke pieces: one will become the lining. Match the side seam on the front yoke to one of the back yokes, right sides together, and stitch.