Big Zip EVO Reservoir
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Big Zip EVO Reservoir
Offering a faster-than-ever flow rate and the same taste-free hydration you've come to expect from Platypus, the Big Zip EVO reservoir has your back on hot days of outdoor adventuring. Whether you're hiking to your local lookout or mountain biking your favorite trails, the improved flow rate and self-sealing Bite Valve valve make it easy to get hydration when you need it, while the leak-proof shutoff valve, handy grip, and secure SlideLock make it easy to operate. Plus, thanks to Platypus' clean taste guarantee, along with embedded Silver-ion to keep away mold and bacteria, you can have peace of mind as you hydrate yourself on countless adventures.
Details
- Hydration reservoir with a clean taste and quick flow rate
- Self-sealing bite valve improves flow for more effective hydration
- Silver-ion treatment protects clean water from mold and bacteria
- Leak-proof shutoff valve prevents leaking in your pack
- Sliding lock and one-handed pincher grip make it easy to fill
- Item #CAS00FO
- Material
- polyurethane, polyethylene
- Volume
- 1.5L, 2L, 3L
- Valve
- silicone
- Dimensions
- [1.5L] 13 x 8.5in, [2L] 15 x 8.7in, [3L] 17.2 x 9in
- Claimed Weight
- [1.5L] 5.6oz, [2L] 6oz, [3L] 6.5oz
- Manufacturer Warranty
- limited
Reviews
Q&A
What do you think about this product?
Overall Rating
3.5 based on 72 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.Customer Images
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Selecting an option will reload the available reviews on the pageMarch 29, 2025
They kept cool with ice
They kept cool with ice and easy seal i had plenty of water after a long day
Originally reviewed on a Cascade Designs brand site
November 9, 2024
Best water bladder.
The reservoir did develop a leak from a small hole. What is the recommended material and adhesive to repair it?
Originally reviewed on a Cascade Designs brand site
November 7, 2024
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
Originally reviewed on a Cascade Designs brand site
November 7, 2024
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.
Originally reviewed on a Cascade Designs brand site
November 7, 2024
Not my favourite bladder that I have used.
The backpack strap attachment fell off, the mouth piece consistently leaks, and one time the closure tab came off and all of the water spilled in my bag all within the first couple of uses. I have since had to replace it with a different brand that has been working well.
Originally reviewed on a Cascade Designs brand site
October 22, 2024
quality is gone
- Familiarity:
- I've put it through the wringer
- Size Bought:
- 3L
I've had Platypus products for years and have the 2L version already. This one has fallen apart. First the slide stopped sealing the bag after about 5 months and leaked everywhere. So now I have to seal it by hand before putting the slide on. Then about 2 months ago the handle on the slide broke on the one side so I have to gingerly pull it out of my bag each time. Not worth the money.
September 23, 2024
Great water bladder
Used on last couple long hikes in the Utah Capitol Reef Park. Works as expected. No leaks. Quality product.
Originally reviewed on a Cascade Designs brand site
September 10, 2024
Great bladder. Easy to clean.
Great bladder. Easy to clean. Doesn't taste like plastic.
Originally reviewed on a Cascade Designs brand site
August 12, 2024
Old Big Zip was better
Old big ZIP was better easier to clean. New bags are terrible. Who ever designed this should be fired.
Originally reviewed on a Cascade Designs brand site
June 16, 2024
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
Originally reviewed on a Cascade Designs brand site
Do you have a question about this product?
May 26, 2020
Will this fit the newest Osprey Xenith 75L?
April 7, 2020
Is it possible to attach an inline water filter to the EVO reservoir . SAwyer mini etc.
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