MAKING UP
Weave in ends and block gently to measurements, following any yarn care instructions on the ball band.
When completely dry, assemble the cushion cover. With RS facing and using mattress stitch, join the cast-on edge of one of the back pieces to the cast-on edge of the front piece. Join the cast-on edge of the other back piece to the cast-off edge of the front piece in the same way.
Sew up the sides using mattress stitch, overlapping one of the back pieces over the other.