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Platypus Big Zip EVO Reservoir 1.5 L

SKU: PPSBZR15 MFR: 10859
$49.95

Key Features

  • Stay hydrated on the trail with this durable Platypus water reservoir, made for hiking.
  • Enjoy fresh, clean water with our BPA-free reservoir, ensuring safe hydration on every adventure.
  • The leak-proof design of this water bottle ensures no spills in your backpack during outdoor activities.
  • This lightweight hydration reservoir is easy to clean, making it perfect for camping and hiking trips.
  • With a wide opening, this water bottle is easy to fill and clean, a must-have for outdoor enthusiasts.
  • Choose the perfect size from our range of Platypus water reservoirs for your next backpacking trip.
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Questions & Answers

Shopper : Why Did You Choose This?GREG O : Ease of use and USA made.

Reviews about this item

Review Summary

2025-07-03T20:00:00

Rated 5 out of 5

I have only used this

I have only used this twice but it worked great and holds a nice amount of water. Cool technology all over and hopefully a nice long lasting product. Feels like it will be.

Ian P.

2025-05-27T20:00:00

Rated 5 out of 5

Love this style because it

Love this style because it is so easy to open for filling, and so secure when it is sealed. Easy grab handle also a big plus.

Suzanne M.

2025-04-22T20:00:00

Rated 5 out of 5

No taste and enough water

No taste and enough water for each sip, thank you!

Médéric B.

2025-03-28T20:00:00

Rated 5 out of 5

They kept cool with ice

They kept cool with ice and easy seal i had plenty of water after a long day

Norm C.

2024-11-08T19:00:00

Rated 5 out of 5

Best water bladder.

The reservoir did develop a leak from a small hole. What is the recommended material and adhesive to repair it?

Rick H.

2024-11-06T19:00:00

Rated 5 out of 5

this thing is bullet proof

this thing is bullet proof

Noah K.

2024-11-06T19:00:00

Rated 5 out of 5

Dependable reservoir

I've had this for a year and it is performing as expected. No leaks, functional mouthpiece. Attaches directly to my gravity water treatment system for easy refills, so no worry about water contamination on the trail.

Bernard S.

2024-11-06T19:00:00

Rated 3 out of 5

Ok, not perfect

I had a platypus bladder for 6 years, it was great, but It finally had enough (after having a good life) and needed to be replaced. I tried another brand at first, because why not, but that was a mistake. I had very much taken for granted that there are no issues at all with plastic taste in platapus bladders. My replacement platapus reservoir is ok but not as well made and kinda disappointing. There are 2 major issues: 1) the mouth piece pops off the tube all the time and water pours out 2) the big plastic zip top part comes partly off while clipped in my backpack and at other unsuspecting times. I'm waiting for the day this makes a hug mess in my pack, but it hasn't happened yet. In addition to these there is no way to drain water from the small tube attached to the reservoir so you can clean it

Jasmine C.

2024-09-22T20:00:00

Rated 5 out of 5

Great water bladder

Used on last couple long hikes in the Utah Capitol Reef Park. Works as expected. No leaks. Quality product.

Carl E.

2024-09-09T20:00:00

Rated 5 out of 5

Great bladder. Easy to clean.

Great bladder. Easy to clean. Doesn't taste like plastic.

Ben M.

2024-06-15T20:00:00

Rated 3 out of 5

It's okay

I like the pouch filling it was a little hard and I wish it had the magnetic clip for your bag instead of the plastic one

Ruth J.

2024-05-18T20:00:00

Rated 5 out of 5

I have not used this

I have not used this product yet but it fits well in my vest and I think it will be an asset to my hiking and camping experience. Thank you for a great product.

Pamela H.

2024-04-30T20:00:00

Rated 5 out of 5

Big Zip? EVO - 3 Liter

Love the wide mouth. Makes it easier to clean.

Trey W.

2024-01-13T19:00:00

Rated 3 out of 5

Confused

Purchased a 3L and loved it?..until the bite valve came off and we found that the bite valve & shut off valve were filled with some sort of gel-like substance. Can't even remotely clean it out. Searched for info on what it is, and can't figure out what it is. SO disappointed.

Amber

2023-12-08T19:00:00

Rated 5 out of 5

Nice design

I like the design.

Uschi F.

2023-11-08T19:00:00

Rated 5 out of 5

Big Zip 3 liter Bladder

This is my 2nd one. Finished the AT with my first one in 2012. Still working but time for a clean bladder. Backpacked with it this summer and still love it as much as I did on the AT!

Dianne M.

2023-11-08T19:00:00

Rated 5 out of 5

Big Zip 3 liter Bladder

This is my 2nd one. Finished the AT with my first one in 2012. Still working but time for a clean bladder. Backpacked with it this summer and still love it as much as I did on the AT!

Dianne C.

2023-10-31T20:00:00

Rated 3 out of 5

Très bonne poche à eau, manque le bouchon de valve

Honnêtement très content de ma poche à eau platypus ! Mais je ne comprends pas pourquoi vous vendez le bouchon séparément, en effet dès que l'on part en randonnée et que l'on pose son sac au sol, l'embout de la poche a eau se salit ! Le bouchon est donc indispensable, alors pour le vendre séparément ?

Sébastien

2023-10-31T20:00:00

Rated 3 out of 5

Très bonne poche à eau, manque le bouchon de valve

Honnêtement très content de ma poche à eau platypus ! Mais je ne comprends pas pourquoi vous vendez le bouchon séparément, en effet dès que l'on part en randonnée et que l'on pose son sac au sol, l'embout de la poche a eau se salit ! Le bouchon est donc indispensable, alors pour le vendre séparément ?

Sébastien

2023-10-26T20:00:00

Rated 5 out of 5

Great design and durability

Flow is great, ease of filling is awesome, like the water tube attachment and fits well in my pack.

Eric M.

2023-10-25T20:00:00

Rated 4 out of 5

Universal attachments, wide opening.

Serves its purpose. I like the big zip for the wide top opening. Flow is fine if hose doesn't get kinked even with MSR thrulink attached. 4 stars as it could be lighter and is on the heavier side of bladders if you are concerned about every ounce of weight. I would still choose this option over the Hoser bladder as these connections are all universal attachments for other brands.

Colton W.

2023-09-26T20:00:00

Rated 5 out of 5

It works exactly as advertised

It works exactly as advertised no bad taste and no leaking.

Wesley H.

2023-09-22T20:00:00

Rated 4 out of 5

Small mouth makes drying it

Small mouth makes drying it out difficult.

Donna F.

2023-09-20T20:00:00

Rated 5 out of 5

I've used this bladder on

I've used this bladder on a couple of hikes since purchasing it this Spring. I have found that the material is very durable and the bladder is sturdy thanks to the baffle in the middle. It's quite comfortable even in a day pack!

Kevin B.

2023-09-19T20:00:00

Rated 5 out of 5

Big Zip? EVO

Excellent product, works well, well designed, can remove hose for cleaning or storage.

Austen

2023-09-12T20:00:00

Rated 4 out of 5

Easy to use

I've only had a chance to use it once so far but enjoyed the fast water flow and how easy it was to fill up. Seems much sturdier than it's previous

Valerie V.

2023-09-12T20:00:00

Rated 4 out of 5

Easy to use

I've only had a chance to use it once so far but enjoyed the fast water flow and how easy it was to fill up. Seems much sturdier than it's previous

Crazymaritimer

2023-09-05T20:00:00

Rated 3 out of 5

Good and yet...

Pro: Good flow, good capacity. Didn't leak. Bite valve works great. Con: I found that the handle (blue ) pulled away from the reservoir (clear) when inside the pack (Deuter Speed Lite 30) and full. This happened if the handle was attached to the pack's reservoir holder (velcro support/hang tab) that keeps it in place. Doesn't happen if the reservoir is only partially (about little over half) full. Did not leak though.

Gregory G.

2023-08-20T20:00:00

Rated 5 out of 5

Big Zip EVO for mountain biking

Love the simplicity of the wide mouth opening and zip lock closing system. Super easy to fill with ice cubes or favorite electrolyte. Easy to clean and maintain. Primary use is mountain biking and backpacking.

Brad B.

2023-08-13T20:00:00

Rated 3 out of 5

Shutoff valve lever tore off in under a year

I've had good experience with Platypus before, and bought a Big Zip EVO through the Platypus web site. In under a year the lever tore off, with only light use. I submitted a warranty claim, but received only an automated acknowledgement, with no follow-up.

Daniel P.

Platypus Big Zip EVO Reservoir Specifications

  • Capacity

    1.5 Liter: 1.5L (50 fl oz)
    2 Liter (Lumbar): 2L (70 fl oz)
    2 Liter: 2L (70 fl oz)
    3 Liter: 3L (100 fl oz)

  • Weight

    1.5 Liter: 5.6 oz (0.16kg)
    2 liter (Lumbar): 5.4 oz (0.15kg)
    2 Liter: 6 oz (0.17kg)
    3 Liter: 6.5 oz (0.18kg)

  • Dimensions (W x L)

    1.5 Liter: 8.5 x 13" (21.6 x 33cm)
    2 liter (Lumbar): 14 x 8.7" (35.6 x 22.1cm)
    2 Liter: 8.7 x 15" (22.1 x 38.1cm)
    3 Liter: 9 x 17.2" (22.9 x 43.7cm)

  • Film

    Polyurethane / Polyethylene

  • Bite valve material

    Silicone

  • Country of Origin

    Made in the U.S.A. of U.S. and Imported Materials

  • UPC Code

    040818108598

About Platypus Big Zip EVO Reservoir

FEATURED REVIEWS

The Perfect Reservoir!

By Matt

Having used earlier Platypus reservoirs, I had high expectations for this one. The Big Zip Evo has exceeded my expectations! It is literally the perfect reservoir!! The material has no taste or smell. When closing the reservoir by using the slide lock, I always test for leaks and it has never leaked. However I never expected it to leak since all of the previous Platypus reservoirs that I've used never leaked either. The high mount disconnect makes it super convenient to disconnect the hose wi...

View full Review

Great take on an old idea

By Tony

We bought two of the 1.5L bladders for our kids, and they've worked flawlessly on several hikes over the past summer. They're so easy to fill with the big zipper and the clip to close them makes it easy to pack them up. The handle/squeeze portion makes holding while filling a lot easier than struggling to grip somewhere on a regular bladder. I also really like that the bladders are structured a bit, so it's not just a floppy mess inside the pack. I plan to get 3L bladders for my wife and I now.

Platypus Big Zip EVO Reservoir

Platypus Big Zip EVO Reservoir

Introducing the Big Zip™ EVO—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 backpackers, hikers, and mountain bikers. Available in 1.5L, 2.0L, 3.0L and a Lumbar 2.0L.

  • Secure SlideLock™: Slides both directions to easily open, securely close and fill 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 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.

Platypus Big Zip EVO Reservoir Specifications

Capacity
1.5 Liter: 1.5L (50 fl oz)
2 Liter (Lumbar): 2L (70 fl oz)
2 Liter: 2L (70 fl oz)
3 Liter: 3L (100 fl oz)
Weight
1.5 Liter: 5.6 oz (0.16kg)
2 liter (Lumbar): 5.4 oz (0.15kg)
2 Liter: 6 oz (0.17kg)
3 Liter: 6.5 oz (0.18kg)
Dimensions (W x L)
1.5 Liter: 8.5 x 13" (21.6 x 33cm)
2 liter (Lumbar): 14 x 8.7" (35.6 x 22.1cm)
2 Liter: 8.7 x 15" (22.1 x 38.1cm)
3 Liter: 9 x 17.2" (22.9 x 43.7cm)
Film
Polyurethane / Polyethylene
Bite valve material
Silicone
Country of Origin
Made in the U.S.A. of U.S. and Imported Materials

Introducing the Big Zip EVO-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 backpackers, hikers, and mountain bikers. Available in 1.5L, 2.0L, 3.0L and a Lumbar 2.0L.

Platypus Big Zip EVO Reservoir Features

  • Secure SlideLock: Slides both directions to easily open, securely close and fill reservoir
  • Handy Pincher Grip: Allows for easy one-handed filling
  • High Mount Quick-disconnect: Instantly stops flow and offers reliable stowing
  • Leak-proof Shut-off Valve: Offers fast, easy access-no more digging down in your pack
  • 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
  • Platypus Lifetime Limited Warranty

Warranty Information

This product has a limited lifetime warranty.

Key Features

  • Stay hydrated on the trail with this durable Platypus water reservoir, made for hiking.
  • Enjoy fresh, clean water with our BPA-free reservoir, ensuring safe hydration on every adventure.
  • The leak-proof design of this water bottle ensures no spills in your backpack during outdoor activities.
  • This lightweight hydration reservoir is easy to clean, making it perfect for camping and hiking trips.
  • With a wide opening, this water bottle is easy to fill and clean, a must-have for outdoor enthusiasts.
  • Choose the perfect size from our range of Platypus water reservoirs for your next backpacking trip.