An ultra-light, durable water storage system that lets you carry lots of water when needed but collapses down to the size of a fist when empty. Compatible with Katadyn water filters, it is perfect for camping and backpacking. The attachment points on the top and side make it easy to attach to your pack or hang from a tree. You can freeze it to use as an ice pack or fill it with hot water to keep you warm.

Covered by HydraPak's Beyond Lifetime Guarantee.

• 42mm screw capMakes it easy to fill and the rigid rim allows for easy pouring
• Filter compatibleBackcountry water filter compatible
• LightweightUltra-light water storage solution for camping, tramping or any backcountry adventure
• PortableThe flexible design makes it so light and compact, you'll forget it's in your pack
• Extremely packableFold or crush to collapse down and pack into the included 10cm x 10cm storage bag
• VersatileAttach to your pack or hang with top and side tie-downs
• Track your intakeExternal capacity gauge allows you to track your hydration intake or measure out the contents
• Made of ultra-durable, abrasion resistant TPU & RF welded seams for superior durability and elasticity
• Can be frozen or filled with hot water (max temp 60°C)
• Safe and reliable, 100% BPA & PVC free