Prepare the Cover and Lining
Grade and clip the cover material as needed, so it will lay as smooth and flat as possible.
Clip the lining seams, but grading is not necessary.
NOTE: If you want to add any decorations or features to your cover material that needs to be separate from the core, this is your last chance to add them.
Sew together the last seam, lining to cover material. This will create a continuous loop from your cover and lining material.