HydraPak  Seeker 4L Collapsible Water Container - 140 fl. oz.

• You can freeze it to use as an ice pack or fill it with hot water to keep you warm (max temp 60° C / 140° F)
• Flexible design makes it so light and compact, you'll forget it's in your pack
• 2 load-bearing side lash points for attaching to your pack or setting up a gravity feed
• Made of ultra-durable, abrasion-resistant TPU and RF-welded seams for superior durability and elasticity; materials are BPA- and PVC-free
• Low-profile, durable, coated handle allows for easy pouring and is tear- and weather-resistant
• Large 42 mm screw cap opening makes it easy to fill and the rigid rim allows for easy pouring; removable tear-resistant tether prevents cap loss and functions as a carry loop
• External capacity gauge allows you to track your hydration intake or measure out the contents
• Fold or crush to collapse down and pack into the included storage bag
• Backcountry water filter compatible; Katadyn BeFree filter (not included) screws onto the top, allowing you to filter more water at camp
• Can be used as a hydration reservoir or paired with a Plug-N-Play cap and 28 mm filter adapter (not included)

Imported.