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BOULDER Triple Insulated Stainless Steel Water Bottle with Loose Tea, Fruit, or Ice Strainer - 20 oz

4 product reviews Write A Review
1.25 LBS
Calculated at checkout
Size chart

Product Description

Performance with Style

The Boulder is our flagship bottle that enjoys wide popularity, especially with its updated slimmer body and sleek profile. You can fill this bottle with both cold and hot drinks and take it anywhere, since its secure top will keep your drink inside where it belongs. So, toss in a tote bag or backpack and hit the trails, golf course, run errands around town or keep on your desk for convenient hydration through the day.

This bottle features our vacuum TriMax® triple insulation technology and has been tested to keep liquids cold for 36 hours and hot up to 8 hours. Its dual use leak proof top has a wide opening for easy filling and a small opening for easy drinking.  A versatile vessel for anything, anytime, anyplace and now available with interchangeable tops!

Compatible with the following Adult Flip Straw Top:



  • TriMax Triple Insulation Technology
  • Keeps cold 36 hours, hot up to 8
  • No BPA, no phthalates, no liners
  • Premium 18/8 stainless steel
  • Dual use leak proof top - wide opening for easy filling, smaller opening for easy drinking
  • Interchangeable with flip spout lid
  • Removable ice, fruit, tea strainer
  • Fits in most cup holders
  • Never sweats
  • Hand wash
  • Recyclable
  • 20 fl. oz./600 mL
  • Dimensions: 3 x 3 x 9.5



Product Reviews

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    Posted by Becky from northern Minnesota on 9th Dec 2017

    I first purchased a BOULDER Triple Insulated Stainless Steel Water Bottle with Loose Tea, Fruit, or Ice Strainer - 24 oz this summer after much research and loved it, so I purchased the 30 oz BOULDER, too. It performed just as described. I ordered directly on the ECOVESSEL website and was pleased with the ordering process and delivery. I like that the company is based in Boulder, Colorado.

  2. Best I have ever found.

    Posted by Bonnie Stevens on 2nd Nov 2017

    We have terribly hot summers, this product stands up to its reputation. It really works. Fantastic!!

  3. Wonderful! Except For Blue Paint.

    Posted by G. Thomas on 20th Jun 2016

    I ordered two of these 20oz water bottles through Mass Drop and although they performed as claimed the bottle with the smooth blue finish already has paint coming off and the ECO Vessel logo has all but vanished. The other bottle is orange in color and reminds me of a Duracoat type finish and is holding up much better than the blue bottle. When I ordered my bottles I thought that both would be the same Duracoat type finish, and it looks as though according to the pictures that they now all ship with that type of finish.

    Overall I am extremely happy with my purchase, placing ice and water inside lasted well over 24 hours, and all of the other parents were jealous and asking me where I purchased my bottles from, and of course I directed them to this site.

    I just wish that my blue bottle had the same finish as the orange one has.

  4. Love the new size

    Posted by Jessica E on 13th Mar 2015

    The size of the new Boulder is the only reason I am giving them 4 stars. I love how much smaller the new Boulder is and that it actually fits in my cup holder in my car but the only downfall is it does not keep Ice as long as the older style. We also have the older style and that keeps ice for days as for the new Boulder it does not even make it throughout the day.

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