What is everyone's favorite ultralight backpack less than 50L for 3 nights of long-distance backpacking in the mountains? My 4 year old Klymit Motion 35L is great for summer on the AT, but I am looking for something a tad bigger and a bit more rugged for Colorado. My GraniteGear Crown is a great pack, but looking for the sweet spot in between it and my Klymit.
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