Our product picks are editor-tested, expert-approved. We may earn a commission through links on our site. Why Trust Us? The best collapsible water bottles work exactly like you imagine: They crush, ...

Hydrapak's Flux series consists of lightweight, ultra-portable bottles that collapse down to pocket size when empty. The new Flux+ 1.5L adds a filter top to take care of microorganisms so that one can ...

These collapsible versions of tools and DIY items are easy to store and still get the job done.