Another gear question: Over the past 1000's of miles I have backpacked/hiked, I have used a long sleeve shirt to poly undies, to a comfy pullover for staying warm when I take a break or it's simply cool out. I like to take a shower/bath almost every day, so even in the summertime it can be nice to put on the polys and/or fleece pants and pullover to recover from showering under mtn lake cold waters.
I've noticed lately some people wearing rather small/thin looking down(?) jackets. Since they can be so warm, what would you all recommend I get that packs down rather small, is rated to 20 degrees and is not too expensive--less than $200. What about light pants that is something other than rain gear?