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The Platypus line of hydration bladders offers a great addition to any backcountry hunter when fresh water sources are limited.


The Big Zip EVO is the latest evolution in taste-free hydration. The Big Zip EVO delivers a significantly higher flow rate than previous Platypus reservoirs and a host of new features, making it a great option for any backcountry hunter when hydration is a must.

  • Secure SlideLock: Slides both directions to easily open, securely close and fill the reservoir.
  • Handy Pincher Grip: Allows for easy one-handed filling.
  • High Mount Quick-disconnect: Offers fast, easy access—no more digging down in your pack.
  • Leak-proof Shut-off Valve: Instantly stops the flow and offers reliable stowing.
  • Semi-rigid Center Baffle: Offers low-profile support and makes for easy cleaning and drying.
  • HyFLO Self-sealing Bite Valve: Improves flow along with new, larger 5/16″ drink tube.
  • Funk-free: Embedded Silver-ion protects clean water from mold & bacteria.
  • Pure Platy Experience: All materials are certified taste-free, BPA-free, BPS-free, and phthalate-free.
Weight 0.75 lbs
Dimensions 18.5 × 9.5 × .5 in

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