New: the Shiftback denim. These new Cast Iron jeans have a modern regular tapered fit that sits relaxed at the waist and tapers from the knee down. The gray tone gives them a premium Cast Iron denim look. The combination of the authentic denim look with the comfort of a soft super stretch denim makes the Shiftback stand out. In addition to the signature Cast Iron branding, new details such as the double back pocket provide the finishing touch.