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  • Eco Vessel Boulder Triple-Insulated Stainless Steel Water Bottle with Screw Cap (17-Ounce, Blue Glow)
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Eco Vessel Boulder Triple-Insulated Stainless Steel Water Bottle with Screw Cap

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Price: $19.39 - $48.00
Sale: Lower price available on select options
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Blue Glow
  • BPA-free triple-insulated stainless steel water bottle
  • Beverages stay cold for 36 hours and hot for 12 hours
  • Wide mouth for ice cubes and easy filling; drinking spout for easy sipping
  • Removable mesh strainer basket for tea or use as an ice dam
  • Made from premium grade, 100% recyclable stainless steel

Frequently Bought Together

Eco Vessel Boulder Triple-Insulated Stainless Steel Water Bottle with Screw Cap + OXO Good Grips Bottle Brush + OXO Good Grips Water Bottle Cleaning Set
Price for all three: $36.20

Some of these items ship sooner than the others.

Buy the selected items together


WARNING:
CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Product Description

Boulder Triple Insulated Stainless Steel Bottles

Featuring our TriMax triple insulation technology, the BOULDER and BIGFOOT have been tested to keep water cold for up to 36 hours and hot up to 8 hours. Perfect for water, tea, coffee, soup or just about any drink. Its tight screw on top will keep your drink securely inside, where it belongs.

TriMax Triple Insulation
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Built in Tea Strainer and Ice Dam.
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Loaded with Versatility

These Eco Vessel bottles have a wide mouth to easily accommodate ice cubes and a comfortable, convenient drinking spout. We've also included a removable tea strainer/ice dam. The Boulder and BIGFOOT are sturdy, high quality, stylish vacuum insulated steel water bottles for the office, tennis courts, golf course, on the trails, anyplace, anytime.

Boulder and BIGFOOT Features

Cold and hot drinks Premium #304 stainless steel Free of BPA, phthalates, liners TriMax triple insulation for superb performance Removable tea strainer/ice dam Sturdy carrying handle Recyclable Available in 17 oz (500 ml), 25 oz (750 ml) and 45 oz (1300 ml)

BIGFOOT and Boulder Bottles
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Boulder and BIGFOOT Features
  • Cold and hot drinks
  • Premium #304 stainless steel
  • Free of BPA, phthalates, liners
  • TriMax triple insulation for superb performance
  • Removable tea strainer/ice dam
  • Sturdy carrying handle
  • Recyclable
  • Available in 17 oz (500 ml), 25 oz (750 ml) and 45 oz (1300 ml)

Product Details

  • Product Dimensions: 11 x 4 x 3 inches ; 15.2 ounces
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B007MI7GNW
  • Item model number: CAP500LP - P
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (340 customer reviews)
  • Amazon Best Sellers Rank: #1,036 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Customer Questions & Answers

Customer Reviews

It keeps my drinks hot and cold for a really long time.
L. Charles
When I reported my poor review of the double-wall unit to Eco Vessel, an excellent customer service rep. (thank you Carol!)
Ryga
9 hours later there is still some ice remaining and the water is cold!
Keith W.

Most Helpful Customer Reviews

64 of 66 people found the following review helpful By Ryga on February 10, 2012
I bought a double-walled Eco Vessel about a year ago, but seldom used it as it failed to keep liquids hot under very cold conditions. HOWEVER, the new triple-wall unit is far better, and keeps boiling water hot for at least 4 hours in cold-to-cool conditions. I use the thermos in the winter, snowshoeing and hiking in the Rocky Mountains back-country of Colorado. Since I begin each hike well hydrated, I sometimes don't access my water supply for a couple of hours. And, at that point, I need it both for hydration and for warming.

Why only 4 stars? I'm a very tough grader.

When I reported my poor review of the double-wall unit to Eco Vessel, an excellent customer service rep. (thank you Carol!) apologized for its performance and offered to send me one of their new, triple-wall units -- free. I certainly couldn't argue with that, and told her I'd give it a thorough test. The new unit arrived within a few days. What follows are my test results.

First, I prewarmed the unit with hot tap water, letting it sit for 5 minutes or so. This is important, as metal is an excellent heat conductor. Warming the metal up front slows initial heat loss. Then I filled the unit (24 oz.) with vigorously-boiling water from a tea kettle. Once in the vessel, the water temperature measured 200º F, ~12º being immediately lost through conduction into the inner wall.

I set the filled vessel outside in the shade. Ambient (air) temperature at test start: 26ºF. Vessel was placed on a low-heat-conductive surface (my door mat).
At hour 1, Contents: 178ºF. Ambient temp: 32º.
At hour 2, Contents: 163ºF, Ambient temp: 37ºF
At hour 3, Contents: 150ºF, Ambient temp: 41ºF.
At this point, I removed half the water to simulate drinking 12 oz.
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I can't tell you where the Berumuda triangle is that zaps up my water bottles...I use them all the time so I suppose it's likely I leave them places and Ii know I've broken some or melted lids in the dishwasher but be that as it may, I am like the tester of water bottles because I've owned so many.

But I shouldn't call this a water bottle. Because it's steel, it keeps coffee hot for hours. Because it has a mesh screen at the top that pulls out in one second, you can also load it with crushed ice and a rum and diet coke and head to the BYOB party down the block and not ruin your lipstick or makeup with crushed ice coming atcha every time you take a sip.

But for me, I force myself to get my daily water intake in with it.

So here is why it's different...

Unlike most, the lid stays attached. No rummaging through my drawer to find a matched lid anymore. Pop it off and the screw top hangs down by a rubber piece that also rotates so it's never in the way.

It's triple insulated. I literally get a cold or hot drink for hours depending upon what I put inside. It's a thermos without the weight of a thermos.

It's steel. No BPA leaching from my plastic

But my fave part is actually that little screen at under the lid that pulls out if you don't want it but it naturally controls the flow of liquid. What I mean is, I prefer drinking from a water bottle so that a beverage, especially when I work out, isn't splashing all over the place. But we have all read that sucking on the kind with the built in straw causes wrinkles anyway and you can't really clean out those straw parts...but the other kind with just an open hole at the top can wind up with spilled coffee or bev down your shirt. This solved it all.
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31 of 36 people found the following review helpful By SD GUY on April 25, 2012
For you scientifically inclined I did controlled studies and did all the experiments in triplicate at room temp (69F) with two different electronic temp probes and reported the averages. Standard deviations were small.

Summary- not as advertised but works well better for cold liquids than hot. Hot liquids: 6 hours. Cold with no ice cubes:12 hours, cold with 4 oz ice cubes: 36 hours.

Ecovessel keeps liquids hot for 6 hours not 12. I poured 24 oz boiling water into the vessel. At 6 hours the temp was 151F which is hot. At 12 hours the temperate was 125%F. Hot for hot-tub but not for teas or soups.

Ecovessel is more effective at keeping liquids cold but only if you put in a certain amount of ice cubes. I put in 24 oz of cold water from a Sub-zero refrigerator set at 35F with no ice cubes, temp goes up to 45F in 12 hours. 20 oz of 35F water and 4 oz of ice cubes keeps the liquid cold (39F) for 36 hours but the ice cubes disappear. Ice cubes are important for keeping liquids cold.
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9 of 9 people found the following review helpful By NELL B NGUYEN on October 30, 2012
Color Name: Ava PinkSize Name: 17 oz Verified Purchase
We bought two Eco Vessels one for each kid to bring water to school. Only used them for water. The vessels kept their water very cool, but after 2 weeks only 2 weeks, I noticed rust developing on the inside mouth and on the top small cap. Hence we stopped using these bottles immediately. And yes, rust seen on BOTH of our bottles!! Very unhappy customer.
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34 of 42 people found the following review helpful By Marina on December 15, 2010
Color Name: Silver ExpressSize Name: 25 oz Verified Purchase
I bought three of these bottles in different colors, and had to return all of them. I bought them for my kids to give them hot tea to school in winter, and also figured it would be great to use them in summer for ice water. One of the bottles was obviously defective as it didn't keep the tea hot even for two hours. The other two were slightly better but not even close to keeping it hot for 6 hours, as indicated in the features. The remaining tea was barely warm when my kids came home from school. I also need to note that these bottles came with a nasty chemical smell inside, and although after a thorough washing it went away from the bottle itself, because it's steel, I think, it didn't go away from the plastic cap. I found a great alternative though that I would highly recommend - HydroFlask bottles. They work wonderfully for hot (still hot after six hours!) and cold drinks, come without a smell whatsoever, and are also "hand-crafted in meticulously chosen factories that practice social responsibility, fair labor and strong ethics" as the tag on the bottle states. Hope this helps!
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