This bottle is sturdy, lightweight, and foldable for easy use. It can stand on its own with water and air in it. And since you can use the same 28mm cap as a plastic bottle, you can use a water purifier such as Sawyer.
When not in use, it is compact, and when in use, it becomes vertically sized and looks like a plastic bottle, making it a very convenient item for hikers.
Tethered cap with top string
28mm cap
TPU thickness 0.4mm
FDA approved BPA, BPS, BPF Free size (when folded): 10x5x5 cm
Size (when used): 25.5x5x5cm
Weight: 60g
Temperature range: -6℃ ~ 60℃
made in china