28mm Vesica® 1L Collapsible Bottle
28mm Vesica® 1L Collapsible Bottle
28mm Vesica® 1L Collapsible Bottle
28mm Vesica® 1L Collapsible Bottle
28mm Vesica® 1L Collapsible Bottle
28mm Vesica® 1L Collapsible Bottle

28mm Vesica® 1L Collapsible Bottle

Regular price$16.99
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The Vesica® is a collapsible, reusable and light water bottle that behaves like a hard bottle for easy drinking on the move. Simply carry 1L of water and stow away when empty.

We've taken our experience from the Vecto and made a robust, light and easy to use bottle so you can have a handy tool to stay hydrated. Featuring a collapsible body with a stiff neck and bottom, the Vesica can stand when full with water or air, held for drinking and collapsed when empty.

Using the same universal 28mm thread as the Vecto, the Vesica can be used as a dirty water bottle for filters like Sawyer or HydroBlu. If you like to filter into a container for easy drinking, use the Vesica with the Vecto to create a fast, light and easy to use filtering system.

Cnoc exclusive: FREE Sports Cap with every Vesica! 


  • Packable and easily stashable when empty
  • Lightweight at only 60g for a 1 liter bottle
  • Top string near the cap for easy pull from side pockets
  • Tethered cap
  • Attaches to filters with a 28 mm thread, such as the Sawyer Squeeze, Mini, or Micro, the LifeStraw Flex, and the HydroBlu Versa Flow
  • Robust and durable utilizing a thick 0.4mm TPU
  • FDA approved and BPA, BPS, and BPF free


  • Capacity: 1 liters / 32 oz
  • Packed size: 4x2.9x2.9 in / 10x5x5 cm
  • Trail size: 10x2.9x2.9 in / 25.5x5x5 cm
  • Weight: 60 g / 2.1 oz
  • Made from FDA approved TPU
  • BPA, BPF and BPS free
  • Operational temperatures: 20°F (-6°C) to 212°F (100°C)
  • Handmade in China

Customer Reviews

Based on 6 reviews
Excellent with squeeze filter

Great water bottle. Packs small, great to use with Sawyer squeeze filter. I've cleaned in dishwasher 3+ times with no issue.

Not dishwasher friendly

After I got the unpleasant TPU taste out (with multiple denture cleaner tablet soakings) I was really loving my Vesica bottles - until I put them in the dishwasher. They are labelled as dishwasher safe but that doesn't mean dishwasher friendly. The rigid top section is now deformed and the soft mid section has a number of new creases so it doesn't stay up very well when the bottle is less than completely full. I am regretting running both of my Vesica bottles through the dishwasher - don't make the same mistake.

M.A. Donahue
Constructive criticism

After seeing other hikers using a CNOC hanging bag on the trail in 2020 I purchased a 2L bag and used it last summer (2021) extensively. Occasionally for shorter solo trips I still put my HydroBlue filter on a Smartwater bottle to shave a few ounces. Those of you that have put a Sawyer filter on a Smartwater bottle know the way the bottle will buckle when you squeeze the water out. The Vesica collapsible water bottle is the perfect solution for this problem. At less than 2 oz it is half the weight of my hanging bag and fits nicely inside my cook cup/pot. My complaint is it doesn’t hold a full liter of water. When full to the very top it holds a bit less than 28 oz.
My suggestion is to make the bottle a bit taller so that it holds a full liter. If you offered this product in a 1-1/4 or 1-1/2 liter version I would happily purchase another. I think a 2 liter would be too big.
I filter my water into 500 ml Smartwater style bottles for drinking.

Great, but not 1L

I like most everything about these except they fit about 850ml tops, not 1L. Hey, that means they're lighter than a Kg full right? Maybe I got a bad batch? Anyway, seems something worth disclosing.

Hi Todd, thanks for your review! You are correct - the Vesica's capacity is ~1 fl oz less than a true liter. When filled to nearly full, the Vesica will hold slightly more than 32 oz, stopping about a centimeter below the base of the neck/threads.
Customer Support
CNOC Outdoors

David and Moose
Seems like it will work well.

Just received two bottles today. They arrived in only 3 days from ordering. Have not tried take out with water yet, but I did screw on both a Sawyer Mini and Sawyer Squeeze filter and squeezed the bottle as hard as I could and didn't experience any air escaping around the threads, so I'm assuming there should be no issues with water, like one person reported in their review. Maybe the other person needs to replace the washer on their filter, my filters are brand new. As far as needing both hands to drink from the bottle, I can see where that would be required. In my case, I plan on using them as a small dirty bags for filtering water, instead of using the Sawyer filter bags. I'll filter from CNOC into one of my either Camelbak or Nalgene bottles for actually drinking.