I have been using a granite gear blaze 60L this winter and enjoying it. Previously was trying to use a crown2 60L, but the tight side pockets and weight limit of 30lbs were pushing it when stuffed with winter down gear. I very much like the huge side pockets for storing a nalgene in an insulated, and all of the compression straps on the blaze for winter loads. Summer pack is a Kakwa 40L for reference, I am liking this 2 pack combo, which seems to cover my use case well (southern IN, occasional winter trips to MI).