Every seasoned trail chaser knows that when it comes to gear, every ounce counts. That’s why the Hydrapak Seeker Collapsable Water Bottle is the ultimate in lightweight packability for campers and backcountry hikers alike. Weighing in at just 3.3-oz. empty, its tough-yet-flexible construction crushes down to the size of a fist and packs into its own storage pouch. It even fills with hot water to heat your sleeping bag, or freezes to keep the chill on chow. Rugged, abrasion-resistant TPU with RF welded seams means this bottle’s in it for the long haul. And better yet, it’s BPA- and PVC-free. So go ahead, take a load off!