I basted up the aprons this morning. And I got my thread during lunch. While at the fabric store I spotted this tartan material. It was 100% wool and a twill weave. It had a hard finish, so I assume its worsted. It felt light and had a small sett, so probably around 11oz. I reminded me of some of the Irish county tartans. It was $12.99/yd. I might have to go back. For future practice of course.