Lasted 6 months
Great water bottle but don't expect durability. I work in the field hiking most days and after 6 months of normal use about 3-4 times a week it sprung a leak on the bottom corner that creases as it filled and emptied. Disappointing as using the a working vapur bottle really is a joy. Sadly I won't be buying another.
Amazing but both of mine leaked.
This is the most useful water bottle I've ever owned. I took my first one on a 2 week camping trip through National & State Parks in Utah, Nevada, and California last May. I slept in a Brazilian hammock the entire trip and I loved that I could clip the water bottle to the ridgeline above me and have it literally hovering above my head while I slept. The nights were cold in the desert so I would wake up to a refreshingly cold bottle of water dangling in front of me each morning). One one freezing night I even boiled some water and slept with the water bottle pressed against my Femoral Artery which kept me warm until I was asleep. After one exhausting hike through Natural Bridges I even used the empty water bottle as a pillow to take a nap while waiting to be picked up. I also love that it can be rolled up to save pack space when empty (it fit in my pocket) and even be clipped outside of a pack when full. I accidentally dropped it climbing up a steep incline at Natural Arches and instead of rolling off into oblivion, it just slid several feet and stopped (unlike several other people's water bottles). I was so impressed by this water bottle! Unfortunately, It started leaking on the very last day of my drip (it woke me up dripping on my face in the middle of the night). I ordered another when I got home but it also started leaking after several weeks. I blame the first one leaking on all I put it through on the trip (shouldn't have used it as a pillow), and I blame the second one leaking on the fact that I froze it almost every single night (to drink in the mornings). I was impressed at how well the cap sealed even after being frozen solid every night for several weeks. The leaks were both up in the bottom where the side is folded into the bottom (which is the weakest part of the bottle) I'm going to hold off on ordering another until I can be sure my lifestyle won't break it