The outer layer of this jacket is made with a piece of American history. Its fabric is warm and comfortable 16-ounce wool from Pendleton Wool Mill, a Pacific Northwest mill that’s an American institution and has been in operation since 1863. The fabric is heavy and tightly woven, easily keeping out the chill. Unbreakable Japanese urea buttons and British black cotton moleskin details are applied to make this heavy shirt your go-to layering piece.