Carhartt Klondike pant in Blue Rigid. 100% cotton machinw washable at 40 degrees. (All denim loses colour through the special drying proccess. As time goes by this will happen less after the jeans are washed). The Klondike pant from Carhartt is made from Japanese denim (13oz ring-spun) one of the best & most superior quality fabric for jeans today. These jeans are slim fit with a low waist button fly & a tapered leg.