Place the strip of blocks face up and place the lining face down, then on top of that place the batting.

Using a quarter inch seam, sew along three sides of the batting leaving one end of the strip open. Turn the strip inside out and fold in the raw edges. Pin them and stitch them shut. You can do this on the machine because in the finished bag they won’t show.

If you prefer, you may sew the ends when you quilt the strips. They really should be quilted because the batting isn’t all fastened down. I quilt mine in an ‘x’ on each block but if you’re good at free motion, have at it.