Following a chainsaw to the knee, I decided to get a pair of jeans that offer a little more protection.  These fit the bill perfectly!  I plan to wear them while riding motorcycle too.  The denim is heavy enough that they don't tear during hard work, light enough to move, and the double front design makes me feel safer than wearing the lightweight denim of other brands (sorry Dickies!).  Well worth the price.  Durability + Protection + Comfort have even made these my favorite cool weather jeans.