Before you cut the corners of your lining, using the directions on your fusible fleece, attach it to the back side of your lining. Then match up the outside bag pieces to the lining pieces, just to make sure they are the same size. If not, trim the lining pieces on each side. (These always seem to come out a tad bigger for me.) After this is done, cut the 2" squares on the bottom corners. It will look like the above.