I keep an eye on the heritage market and came across these awhile ago:
Red Cloud Waxed Canvas Fitted Work Pants
While waxed pants are mostly for hipsters and old loggers, these pants have one feature I'd like to call out:
Using the double front as the material for a pocket is something I've considered in several different ways but these guys pulled it off nicely with more subtlety then I would have managed. Good use of materials and a nice, unique feature to separate them from the heritage saturation.