Used the Fjallraven Kebs for elk/deer this fall and am now using them for upland, and like them much more than the previous brush pants, work pants, and hunting pants I've used in the past for upland since they seem to be a great combination of all three.
1) 90% pokey proof (very pokey proof in the waxed canvas, somewhat in the stretchy fabric)
2) 90% waterproof (100% in the canvas when properly waxed, and the stretchy fabric still breathes which is a great combination)
3) has zipper vents (has them, but no mesh which I actually prefer with zip-off base layers)
4) comfortable (the stretchy portions make these as comfortable as kuiu attack pants)
5) Bonus - integrated gaiter hook so you don't need separate gaiters most of the time