I've found that my North Face Borealis backpack suits me really well for one day hiking in cold weather. It would serve well also as an overnighter backpack in mild weather, while it is too small for me for an overnigt in cold weather due to the need to carry a sleeping bag and an isolating mattress. I particularly appreciate its frame, which makes the weight distribute very omogeneously, and its compact dimensions. I would have loved some webbing underneath of the backpack, but I think I can manage to mod it this way. In that case I could put the sleeping bag and mattress hanging under the backpack and use it for an overnight also in cold weather.