Actually, it doesn't need to be wool for what I'm wanting to do with it. I am wanting something very light weight, cotton would be fine, just so long as the tartan patern is right. (Gordon Modern)

Most of the events we go to are in the summer. I live in the south and heat is a real factor. And since I'm not looking to make a historical garment as I would wear for SCA, I don't think wool is needed.

Hope that helped.