0.7L Collapsible Water Bottle

I was skeptical about a bottle that folds down, but it actually holds up great on daily walks with my dog. The wide mouth makes it easy to fill and drink from, and I love that I can clip it to my bag when it's empty. It's my new go-to for hikes.

It folds down flat enough to slip into my glovebox, which is perfect for those spontaneous hikes. The wide mouth makes filling it at a public fountain way less awkward than I expected. Only wish the clip were a bit sturdier for heavy loads.

I keep one clipped to my backpack for trail days, and the wide mouth makes filling it at a stream or fountain way less messy than I expected. Folds down flat when empty, though it does take a bit of patience to roll all the air out.