Since I live in Minnesota, a Cordura version would at least be wearable 9 month out of the year!
:lol
If you find the right stuff, please share! The only cordura I've found that is the right color is described as being bulkier than No. 7 Duck (which is quite heavy) and it is polyurethane lined! Ouch! You would need to line it, I think. You're a svelte fellow, so maybe it could work for use, but I sweat to death in my lined imperial officer's uniform (heavy wool). No way I could wear heavy plastic coated nylon! OTOH, I could maybe sweat off 50 piounds or so!