I'm 75. This is now my third "Detroit" Carhartt jacket and my third set of bibs. The Indian blanket liner is the only way to go. Got my first set when I bought my first house in 1975. Under active construction, landscaping and auto mechanics work (I'm a hard core do-it-yourselfer), this heavy-duty jacket can last twenty years. The wear only gets better with age. I plan on passing this, my last, set of bibs and jacket to my grandson (hope to get 15 years out of them first... we'll see) when I pass. I tried to throw out the worn-out pair I'm replacing, but my grandson wanted them because, "they're comfy" ....frays, burns, holes, tears, stains and all.