Not sure on the exact model / material but they don’t appear to make the VersaTac pants in this grid / ripstop material anymore. 100% nylon. These have a stretch waist but the rest of the pants are not. Honestly I am just spoiled by stretch these days and thus don’t wear these anymore. These look a tiny bit word in general (some light piling in higher wear areas like a couple pockets, but that is about it). RailRiders are a small company but pretty sought after regarding build quality etc. Kind of a more civilian / travel oriented TAD gear pants. I used to have a paid of Nylon TADs and the build quality and button sewing is definitely on par.