I love my Carhartt Logger jeans and use them exclusively now when live steaming and in the shop. They have a big extra padding around the knees, no more ripping and tearing and my knees don't hurt when kneeling on ballast. Great to see them incorporating steam railroading into their commercials because a lot of us love carhartt for just that purpose.
I had never heard of them until a carpenter / live steamer friend turned me on to them, they are a fairly obscure brand outside of specialty western wear stores.
Mike Massee
www.mikemassee.com - railroad photography, live steam and more