I am an electrician. I have used many types of pants over the years from Levi's, Carhart, to some other brands like Dickies, Brunt. These different brands always left me disappointed with the quality. I was buying new pants every couple of weeks in some instances. When I found 1620, I was hooked! These pants feel indestructible. I purchased a single pair of the double knee utility pants, and they don't show any sign of breaking down, even though I am putting them through the paces, kneeling on dirt while trenching, concrete while core drilling, and subfloor while roughing out boxes. I like using a double knee because I hate strap-on knee pads. Added benefit, my old Carhart knee pads fit inside the double knee construction of the 1620 pants. I can't even find a place where the Cordura material is fraying at all. I bought two more pairs and they are well worth the money. I love that they will repair your pants if they do start to get holes, and the repairs look awesome! These pants check all the boxes, and I am converted and never going back. 1620 for life!