"A versatile hydration solution for outdoor adventurers, the HydraPak Seeker 2L Water Bag gives outdoorsmen and athletes ultralight water storage for outdoor fun. Made of lightweight, synthetic materials, this 100% BPA- and PVC-free soft-side water bag makes it easy to bring along 2L of water. Sporting a collapsible design, the Seeker folds or rolls up compactly for easy packing in its included storage bag. The ultra-durable, abrasion-resistant reservoir bag features RF-welded seams for superior durability and elasticity. This versatile bag can be used as a water bottle or hydration reservoir, with 2 load-bearing side lash points that let you attach the bag in your pack or set up a gravity feed. The leakproof 42mm screw cap with tear-resistant, removable tether works with 42mm threaded backcountry water filters or can be paired with a Plug-N-Play Cap and 28mm filter adapter. 12.6""L x 5.1""W. Weight: 2.7 oz.Manufacturer model #: A822. Versatile hydration solution for outdoor adventures 100% BPA- and PVC-free soft-side water bag 2L capacity Works as a water bottle, hydration reservoir, or gravity-feed water source Ultra-durable, abrasion-resistant TPU bag with RF-welded seams Leakproof 42mm screw cap with tear-resistant, removable tether Works with 42mm threaded backcountry water filters Can be paired with a Plug-N-Play Cap and 28mm filter adapter"