I use bring 1 nalgene as one of my "comfort items." So, both backpack hunting and sectional hiking.Baboom.......someone's thinking and experienced
Side note, I like Nalgene as they're tough but heavy. Can be easier to take a case of h20 to camp and toss in 3 or 4 20 ounce bottles a day and yet less over all weight to carry.
Bladders can be nice, but if the line freezes you're hosed..............get it
Platypus bags can be ok, a lot like bladders but line to freeze up
They make a 64oz too. It will keep water cold for at least a day. We were in Hawaii when I was hauling them two actually and extra water bottles we were hiking near the volcanos and in the lava fields so it was rather warmDang that thing is beast! Where on earth are you toting that while backpacking?