I have an 8 yd. traditional kilt in 11 oz. tartan from Strathmore Woolens - the only weight my tartan was available in without doing the custom order thing. I know most here disparage men's kilts in this weight, but when I wore it the other day to our local Irish Fest in 85+degree heat, I loved it!
It's a tight, twill-woven worsted wool, and any creases fall right out after a little while hanging....