I’m looking for a super warm winter coat that will last me forever. Something that will keep me warm around -30 C. I’m thinking military surplus, because it should theoretically be more durable (right?).
Price isn’t a huge issue if the quality is worth it.
I imagine that military gear is really built around layers because it could be used for guard duty or a march, which have very different thermal needs. They might have zip out liners which I’m a big fan of for varying conditions.
Military gear is pretty variable in quality. It’s an exercise in cost engineering usually.
As noted, fjallraven makes decent gear. Down is a good material because it compacts well and puffs back. Fur lined hoods are good because it cuts wind exposure. Some furs are less likely to trap moisture and get frosty. Faux furs are no good for actual arctic use.