PackFlask+™ 750ml

Filling from streams and lakes on my last hike was a breeze with the integrated filter, no more lugging extra bottles. The 750ml size is perfect for day trips, and it packs flat when empty.

The built-in filter means I don't have to haul a separate pump anymore, just scoop and sip straight from the flask. Ran it through a muddy stream and the water came out clean with no weird taste. The 750ml size is perfect for a half-day outing.

Filled this at a creek on a 12-mile hike and drank straight through the filter without stopping — no squeezing, no waiting. Carrying 750ml instead of a full bladder honestly saved my shoulders, and refilling on the fly kept me from running dry.