The Blue Mountain Men's Relaxed Fit Flannel-Lined Utility Jeans are durable enough and warm enough for working outdoors. The denim construction offers sturdy wear and classic style, while the cotton flannel lining inside provides an extra layer of warmth to help beat the chill. Multiple pockets, including a hammer loop and a utility pocket, provide convenient storage for tools while you work. These jeans also feature a relaxed fit so that you can move and bend comfortably without restriction.