In the very old days, humans would transport their water, wine, or other beverages in animal skin bladders, but now in the 21st century, we've sort of gone full circle all the back to the flexible canteen with these cool new Vapur Eclipse Collapsible Water Bottles. When you're out hiking, camping, and exploring the great outdoors, an empty stainless steel or plastic water bottle takes up valuable space, but this unique one can be folded, rolled up, or simply flattened when empty. They're constructed from durable yet soft 3-ply BPA-free polyethylene and nylon that is both freezable and dishwasher safe and topped with an easy open drinking cap that includes an attached carabiner. Great solution...once again.
Vapur Eclipse Collapsible Water Bottle