This method is often found in unlined jackets or coats but we love the look of it and used it in a few of our Buchanan samples. Ready made bias binding usually comes in plain colours however you can easily make your own in your choice of patterned fabric if you prefer. The narrower your binding, the more fiddly it will be to sew so you might want to practise on some scraps first.
Begin by sewing your seam with the recommended seam allowance (gather patterns use 1.5cm or 5/8 inch).
Press the seams open.
Insert one edge of your seam into the bias binding and pin in place.