Thanks for this revision! I'm upcycling old sails which are never perfectly flat and tough to get exact, came out kind of wonky the first time so I look forward to trying again with these instructions.
Insane question: at "Adding Back Panel to Assembly," if you were to sandwich the "front" piece between the main fabric back panel and the "secondary" (lining) fabric back panel RST, and sew all the way around but leave a gap for turning, would you eliminate the need for the bias binding in the bag? Or am I thinking of this completely wrong? I can't visualize it in my brain but I really want to come up with a way to eliminate the bulk and look of the bias binding if possible. If anyone has ideas, let me know :)
In case anyone is wondering - yes, this does work! I tried it today. I basted the main fabric back panel on first, left about a 4 inch opening on the top of the bag, then sewed the lining fabric back panel on with the 1/4 inch seam allowance, and left the opening on the top of the bag. I'm going to hand sew the opening closed (lining pieces together, then main fabric pieces together) using an invisible slip/ladder stitch. Fun pattern! :)
