I've found that this style hunting (hike a long way in rugged terrain, then stop and sit for a few hours motionless at dusk while temps drop) to be the very hardest clothing situation to accommodate.
This is why I first started carrying a pack on hunts. Then a bigger pack, and a "little farther in".......
The crotch on my Sitka Ascent pants have come apart twice at the seam.
Same thing happened with mine.
