The great outdoors just got greater. The Hydrapak Seeker Bottle 2L is HydraPak’s ultra-light, durable water storage system for camping, backpacking, you name it. It collapses down to the size of a fist, attaches to your pack or hangs from a tree. You can freeze it to use as an ice pack or fill it with hot water to keep you warm.Hydrapak Seeker Bottle 2L Features:Ultra-light water storage solution for camping, hiking, or any backcountry adventureFold or crush to collapse down and pack into the included 4x4 in. storage bagThe flexible design makes it so light and compact, you\'ll forget it\'s in your packAttach to your pack or hang with top and side tie-downsExternal capacity gauge allows you to track your hydration intake or measure out the contentsThe 42mm screw cap makes it easy to fill and the rigid rim allows for easy pouringBackcountry water filter compatible, the Katadyn® BeFree™ Filter (sold separately) screws on to the top allowing you to filter more water at campMade of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticityCan be frozen or filled with hot water (max temp 60° C / 140° F)Top-rack dishwasher safeSafe and reliable, 100% BPA & PVC free