This is a fabulous pants weight woven from Italy! It resembles and can be used as a wool denim with stretch, but it's softer and more malleable than denim. Has a tweedy, almost denimy look--a fantastic basic for pants, fitted jacket, skirt or suit, sheath dress. Yarns are black and winter white. I love it! Seems to be all wool, but it may have a bit of lycra in it. Dry cleaning recommended.