[rmosolgo]

Thanks for sharing all these reflections on the topic. Regarding Carhartts, I can really recommend Super Casuals, which sells Carhartt factory seconds: https://www.supercasuals.com/category.cfm/449

They're stamped "IRR" on the inside... but that's more subtle than tread marks XD I usually order several sizes of what I'm interested in and send most of them back.