Hydrapak Stash Bottle

Sure, we’ll happily lug around a high capacity water bottle when it’s full, but once we’re through with its contents, we rather it’d vanish into thin air. Hydrapak’s Stash does just that thanks to thermoplastic polyurethane walls that fold down to fit between its molded top and bottom, which snap together to keep its collapsed height at just under 2 inches tall. It also comes in a wide variety of colors, is dishwasher safe, naturally antifungal, and holds up to 750ml – a fair amount by any standards.

Learn more at Hydrapak or grab one at Amazon – $18