Big Zip EVO Lumbar Reservoir
Size:
Quantity
Big Zip EVO Lumbar Reservoir
Designed for your waist, hip, or fanny pack, the Platypus Big Zip EVO Lumbar Reservoir makes sure you stay hydrated whether you're on the trail or commuting through town. Built with plastic that is BPA-, BPS, and phthalate-free, you'll notice no faint flavor in your crystal clear h-two-oh, and it carries up to 2 liters of the stuff. The bladder is well-designed, with easy filling and drinking features, as well as a leak-proof shut-off for the valve. A semi-rigid center baffle provides low-profile support, and additionally makes the reservoir easier to clean and dry out.
Details
- A hydration bladder designed for lumbar packs
- Certified taste-free construction treated to ward off funk
- Handy pincher grip can be filled single-handedly
- Leak-proof shut-off valve keeps your dry stuff dry
- Self-sealing bite valve improves drinking flow
- Item #CAS00FP
- Material
- platic
- Volume
- 2L (70fl oz)
- Hose
- 5/16in
- Valve
- HyFLO self-sealing bite valve (silicone)
- Dimensions
- 14 x 8.7in
- Claimed Weight
- 5.4oz
- Recommended Use
- backpacking, commuting, hiking
- Manufacturer Warranty
- limited
Reviews
Q&A
Overall Rating
3.5 based on 33 ratings
Review Summary
What do you think about this product?
View
Selecting an option will reload the available reviews on the pageJanuary 14, 2024
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.
Originally reviewed on a Cascade Designs brand site
October 17, 2023
Non sealing
I have used various Platypus units since they first hit the market. I got a 2L Evo as my Big Zip SL developed a small hole at the bottom. I put this in my bag and into the boot of the car. Ninety minutes later most of the water was in my rucksack or the car. The top seal is hopeless even with the poorly fitting blue “handle”. Water pours out. Useless. What have you done Platypus?
Originally reviewed on a Cascade Designs brand site
July 30, 2023
Bring back old platypus
I loved the 3L big zip LP with the platypus bag. I told myself I’d never buy another brand. But now platypus has changed their bladder and it does not fit properly in their old bag. And to make matters worse they don’t even sell bags anymore to fit their new EVO packs. This company has gone downhill fast.
Originally reviewed on a Cascade Designs brand site
July 13, 2023
Shut-off valve a weakness
I bought one of these on the 18th of June for my son to use on his Duke of Edinburgh bronze expedition. I've had Platypus products before so I know they are good quality. However I'm disappointed with this one. The reservoir and the tubing are very good and there really is no bad taste. but the shut-off valve is a poor design. My son was out in the wild for less than two days and the shut-off valve fell out of the tube and was lost. It's easy to see how it would fall out as it only has one ridge on the bayonet that goes into the tube; all the other fittings have two or three ridges and they seem to be wider so they will 'dig in' more to the side of the tube. In terms of design this has to be either an oversight or a petty attempt at cost-saving. It's a shame, because now I either risk buying a Platypus valve that might get lost, or try one from a random factory in China that has three ridges, but might not be food safe.
Originally reviewed on a Cascade Designs brand site
June 8, 2023
Happy Customer
Really happy with the bladder. The flow is much better than other brands I have used. I'm wondering if there is a recommended length of time before it's suggested to buy a new one to avoid any plastic leaching into the water?
Originally reviewed on a Cascade Designs brand site
December 24, 2022
Customer service
After having a slight issue with my big zip Evo I was contacted by customer services and it was swiftly replaced. Have to say it was probably the best customer service I've ever received and I will definitely be purchasing more products in the future. Thanks very much platypus.
Originally reviewed on a Cascade Designs brand site
November 27, 2022
Centre baffle split?
In general I am happy with the bladder, no leaks and tasted good from the start so quite happy. Main bad point is the centre baffle has come apart at the bend so it fills like one big balloon. I should have returned it at the time but I thought it was a feature and I could re attach it whenever I wanted to, but now that I want to I've discovered it doesn't re attach. I'm sure I remember something about expanding it for more volume,but can't find anything on it now, and now it takes up to much room in my new bag so it's a bit useless. I like it apart from that tho but can't rate higher as can't use ot. I only use water in it so cleaning easy
Originally reviewed on a Cascade Designs brand site
November 9, 2022
ON/OFF valve not very durable
The bladders themselves have been durable over the years I have used them. The updated ON/OFF valves are not robust and break easily.
Originally reviewed on a Cascade Designs brand site
April 5, 2022
5 stars for customer service
I had a problem with the big zip, the center baffle broke after few uses, as I have already reviewed. I contacted the customer service and they have been very helpful. After verifying the damage, they sent me a new big zip. Problems can happen but they have solved it perfectly, Very serious company. Thank you.
Originally reviewed on a Cascade Designs brand site
January 1, 2022
Great updates - size change is a bummer
I'd been using an older platypus for several years and bought this to replace it when it started to leak. I love the new design features - the narrow tube end slides into my pack more easily and the higher connection makes packing up easier. However, it it just a little wider and shorter than the old model and so the new one does not fit in the reservoir pocket in my backpack - making it unusable if I want more than 1L of water, which I usually do. What a bummer!
Originally reviewed on a Cascade Designs brand site
Need Expert Advice?
Our Gearheads Can Help