Used in two weights. A heavy and a medium weight - 8oz Heavy weight for Terrace overshirts and Turbo jackets, and 7oz Medium Weight for our Loose Fatigues and Para Zip Top. WEATHERED COTTON is a flat weave cotton with a dry wax finish treatment impregnated into the fabric for a unique outdoors rugged style. Over time the fabric will develop creases and wear marks similar to denim in character.