So I have not used this particular bottle yet, but I have been using 2 other igneous NOBO bottles over this last summer hiking segments of the Colorado Trail and climbing peaks. They are great! I purchased another because a few hikes I am planning next summer will likely require an additional liter of water so I can dry camp when needed.

Still need to tryout platypus filter with O rings to see how this works as a bottle/filtration system but as a standalone, it's great!

Light, tough, and beautifully designed This bottle is impressively light without feeling flimsy. It doesn't wrinkle or crumple, and it held up perfectly to the pressure changes on flights. The water tastes clean with no plastic aftertaste, which I really appreciate. The cap has excellent grip, though the ridges are a tad sharp. The opening is the perfect size. Overall, an excellent bottle with great design. My only wish is more cap colors to choose from!