We make the French Asphalt fabric to the old specifications and after the traditional recipe. French Asphalt is a 100% cotton fabric and was widely used for French Workwear as the name implies. The soft and breathable fabric offers great comfort especially in warmer temperatures. Further Details characterize the 1947 Harvester Trousers: - Outer: 100% cotton - Lining: 100% cotton - half-lined - horn buttons - Made in Portugal