>>1192469I use two 20L clear poly(something) bags. They are tough. One for my sleep gear: quilt, liner, long johns and thick socks if it's cold. Then another one for any spare clothes that need to stay dry during the day. This is normally just a puffy but might have an extra active warmth layer if it's going to be cold during the day. I also chuck my three cuben ditty bags in there. One has my electronics: plug, usb cable, and battery pack if I bring one. The other has my hygiene and FAK, and the last ditty bag has cuben repair tape, head torch, lighter, small swiss army knife, and usually some spare dynema cord. Anything else just gets chucked in or lives in the main outside pocket of my pack.