Leather Vent Rings
I first cut a piece with a single top stitch. I believe it was 10.9" long. I don't remember the width between stitch and side.
Use double-sided tape to adhere to the two ends together. Then run a "blind seam" on the red line. I believe it was 0.33" from the ends. After it is stitched.. the circumference should be slightly less than the inner circumference of the ring.
To remove the bulk.. I use this trick for a flat seam.
http://www.thehogring.com/auto-uphol...eam-thread425/
Small dab of glue on both pieces on the seam part. It gets stretched a lot, so I didn't want the seam pulling apart.
I glued sections at a time. 4 points around at first, then filled in the rest.
Then left about 5mm overhang on the outer perimeter. Applied some glue, and wrapped in the backside.
DONE!