I'm considering a vest to replace my jacket in my pack this summer. I've read plenty of old threads saying that a vest is likely the way to go in the temps I'm going to encounter. I also have done some reading on down, and I'm not sure that the extra weight savings is worth the risk of the down getting damp & not keeping me warm.
So, I'm thinking a synthetic vest might be the way to go. If you think down warrents a look, feel free to convince me, I'm easy that way!
I just don't know to much about vests, synthetic vests, so I'm figuring you all do. UL or even SUL might be nice, if that exists...