...ultralight fanatic here....
Just food for thought.
Those nalgene bottles weigh 6 ounces! And they cost TEN BUCKS!
Do yourself a favor, and buy a quart of Gatorade, drink it or pour it out, and you have a bottle that weighs an ounce or two (I'll weigh mine tonight.)
...there are probably even lighter-weight water bottles available,too.
Ya'all will probably draw the line here, but those hydration bladders and tubing are lots heavier than cheap water bottles, too. I'll take my hydration pack on an easy day hike, but for big hikes or backpacks, it stays home.
