Hydrapak PackFlask+

Hydrapak PackFlask+ is an advanced ultralight hydration system with integrated filtration for thru-hiking, backpacking, and fastpacking, featuring a 750ml collapsible flask that filters water on the fly without removing your pack. This hands-free upgrade to the standard PackFlask attaches via stretch-mesh pouch to any backpack harness, delivering safe, high-flow hydration by removing bacteria and cysts at over 1L/min.

Key Features

• Integrated 42mm Filter Cap: Removes E. coli (99.999%), Cryptosporidium, and Giardia from ~1,500L; backflushable for extended use.
  
• Collapsible TPU Flask: 750ml capacity weighs 116g empty; RF-welded seams pack tiny when drained.
  
• Harness-Mount Pouch: Stretch mesh secures to shoulder straps for instant, bounce-free access.
  
• High-Flow Self-Sealing Nozzle: Silicone bite valve with flip dust cover prevents leaks and contamination.
  
• Versatile Filtration: Doubles as squeeze filter for bottles/pots; BPA/PVC-free, freeze-resistant design.