The Hydrapak Seeker 2L transforms how you carry water in the backcountry, collapsing down to virtually nothing when empty yet holding a full 2 litres when you need it most. At just 76g, this ultra-lightweight water container packs into its own storage bag, freeing up precious pack space for the gear that really matters on multi-day adventures. The real game-changer is its 42mm threaded opening that works seamlessly with most water filters, including Katadyn BeFree systems, letting you safely drink from streams, lakes, and questionable water sources without the bulk of traditional bottles. Whether you're setting up a gravity-fed system at base camp using the dual lash points, refilling your bottles on the trail, or simply need reliable water storage for car camping, the Seeker's durable TPU construction and RF-welded seams handle whatever the wilderness throws at it while the tethered cap ensures you'll never lose it during those frantic water stops.