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Because it's made from hygienic, easy-to-clean stainless steel, the Klean Kanteen 20oz Insulated Cup lets you enjoy coffee that doesn't taste like chili or a smoothie that isn't tinged with hints of pesto pasta. The cup's high-performance vacuum design insulates hot beverages for up to six hours and cold beverages up to 24 hours, so you can enjoy hot chocolate on the ski lift or a cold beer at the trailhead after a hike.

  • Food-grade 18/8 stainless steel is highly durable and easy to wash
  • Uncoated interior and threads won't peel, leach chemicals, or impart/retain odors and tastes
  • 2.125-inch mouth opening makes filling and emptying easy, and works with most backcountry water filters
  • Loop Cap is leakproof and features all-stainless interior, so the contents never touch plastic
  • Rounded corners are easy to clean with no hard angles where dirt, germs or bacteria can take hold

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Review Summary
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Klean Kanteen 20oz Insulated Bottle

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Here's what others have to say...

5 5

Quality product

  • Familiarity: I've put it through the wringer

The Kanteen works really well. Primary use is to keep liquids hot while snowshoeing and performs better than expected. I did a little test where I put near boiling water in it and did not open it again until much later in the day and I must say it was impressive that water was still really really hot 6 hours later. It is a little heavy but the tradeoff is that it works really well and is extremely durable so I will have this for many years to come.

5 5

This is whats up!

I love this, more than you know... you know those days when you get caught up in your work and you think to yourself... oh, I wish I had some coffee... Then you realize you have your handy dandy Klean Kanteen sitting there next to you and your day is made.

5 5

Great bottle and coffee cup!

  • Familiarity: I've put it through the wringer

It keep my coffee warm for hour even sitting outside in the cold winters of Colorado.
Really like the sealed cap and then be able to put on the Klean Kanteen Cafe Cap to drink my coffee. A thermos and cup in one!

5 5

Klean Kanteen

  • Familiarity: I've used it several times

I LOVE my Kanteen! It keeps hot things (very) hot, and cold things (very) cold!
How do it know??
My coffee sometimes sits on my desk for a while before I can get to it. Using the Kanteen, it stays hot well into the afternoon. After that it is just warm.

5 5

Insulated bottle

  • Familiarity: I've put it through the wringer

Love this bottle so much I got one as a gift, and she loves it too!

5 5


Love this bottle! I've used it a couple times and it keeps warm things warm and cold things cold for a long time!

5 5

Awesome day trip thermos

  • Familiarity: I've put it through the wringer

For long days, or just cold or warm weather workouts, the 20oz bottle is perfect. Cools down a few degrees an hour so by the end you'll have drinkable coffee/tea/whatever. I can't recommend putting in a milkshake as that left an aftertaste for a while, but most everything else works great. Cap does leak if not on tight and it would be nice to have a cap keeper but they're easy to make with 2mm accessory cord. Fallen off my bike/car many times and shows some dents but they haven't done anything to the function yet.

4 5

Awesome bottle - not the warmest though

  • Familiarity: I've put it through the wringer

This is a great bottle and does keep beverages hot for a couple hours. I like that the threads are on the outside of the bottle because I can fill it nearly to the brim and not worry about putting the cap on and causing overflow as on some other insulated bottles/mugs. Mine does have a rattle in it (no, I haven't washed it in the dishwasher) but it doesn't seem to affect the insulation. Would buy it again

5 5

Best coffee mug ever

  • Familiarity: I've put it through the wringer

I use this mug everyday. It fits in my car cupholder, keeps liquid hot or cold much longer than I ever expect it to, and it looks sharp. It's easy to clean, the cafe cap makes it versatile and the perfect mug in my opinion. It came with the loopcap which is great for bike commutes to work and keeping it 100% sealed.

Best coffee mug ever
5 5

It rocks.

This is my first Klean Kanteen purchase. I've been getting a lot of use out of this bottle and it's very durable, functional, and easy to clean. Not sure if I prefer this to HydroFlask but it's definitely a worthy replacement. It keeps colds cold and hots hot just as adequately, and I think I like the Kanteen lid a little better (the stainless interior is a plus). Also, I dig the sleek finish. This is a quality product.

5 5

Indispensable piece of gear.

  • Gender: Female
  • Familiarity: I've put it through the wringer

I take this thing almost everywhere, using it mainly for warm beverages. It's resistant to the abuse I put it through and the bottom won't bust out on it like the other thinner Kleen Kanteens. Keeps beverages warm for hours and I love it. However, unless you really have a need for a 20oz container, I would recommend the 16oz, simply because it is about three times easier to clean. Just a minor annoyance though, overall a great bottle!

Responded on

why is the 16oz easier to clean than the 20oz?

Responded on

It's not as tall. Easier to get a sponge or bottle brush in there.

5 5

Best Ever

  • Gender: Female
  • Familiarity: I've put it through the wringer

This bottle is AMAZING! Keeps your drink warm for hours. It's my go to bottle for hot drinks that I want to keep hot for long periods of time.

5 5

Absolutely awesome

  • Familiarity: I've put it through the wringer

Keeps everything warm and/or cold for a lot longer than you would ever expect it to. Great leakproof lid, and easy to drink from.

5 5

Best bottle ever

I use this to drink green tea at work. I am still delighted when I open my bottle and steam gushes forth from the mouth, even though my drink is five hours old.

Additionally, I have found this bottle to be incredibly easy to clean.

5 5


This is easily the best insulated bottle ever made, EVER.
This will keep fresh coffee hot for hours and hours, even in the cold!
I take this with me everywhere. While my girlfriend and I are out snowshoeing or nordic skiing, it's nice to know that we can stop and warm up with some hot chocolate at any point of our adventure.
It's stainless steel, so it's super easy to clean and never tastes like the last drink to be in there.