Filson's wool whipcord is a 17 ounce pure wool worsted cloth, tightly woven with a hard, diagonally ribbed outer surface and smooth inner surface. The whipcord is tough and long wearing, wind resistant, wrinkle resistant and water repellent. It offers outstanding comfort and protection over a wide range of temperature and weather conditions. Whipcord is the fabric preferred by many serious hikers and trekkers. These 100% wool whipcord pants are built to take years of hard work. There are two slash pockets, two rear pockets, and a watch pocket. Button waist and zipper fly. Belt loops accept 1-1/2 inch belts. Unfinished legs (37"), so that you may first check the fit and then have the legs hemmed or cuffed by your local tailor. (Our prices make allowance for your cost in finishing the legs.) Dry clean only. Made in USA.