1L Collapsible Water Bottle

I was pleasantly surprised at how compact this gets when rolled up—fits easily in my daypack's side pocket. The pop-up top makes drinking on the trail super convenient without fumbling with a cap.

Filled this for a long day hike and the pop-up top made refilling from streams so easy. It rolls up to almost nothing in my pack when it's empty.

The pop-up top is super convenient for one-handed filling on the trail. Only wish the roll-up was a bit more compact when fully empty, but no leaks so far.