For the last few years I've been carrying a sea2summit m.c.. It's held up well- maybe too well. My perception is that it's too heavy built for me' and I could/should shave off a few grams here - in addition I find it a pain to open and close. In it I carry most all the Topo's pertaining to the route(about4~6) and a print out of the trail discription. A ziploc bag meant for kitchen use strikes me as too thin , even for mild summertime use. What have you all been using?