or, for a sewn Balmoral, try using wool melton cloth
http://www.shuttleworks.com/Woolrich%2021%20ounce.html

- i've found, so far ( still learning/trying for "the perfect" sewn balmoral) , that using a heavy weight lining material (for example, quilted material), seems to help the Balmoral hold it's shape better, with less 'ripple-effect', along the sewn seam.