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Nothing quenches your thirst like a 40, the Hydro Flask 40oz Wide Mouth Water Bottle, that is. The wide-mouth opening works well for ice-cubes and easy pouring, and double-wall vacuum insulated construction means your stuff stays hot or cold.

  • Large (wide mouth) opening
  • Double wall vacuum insulated
  • Keeps hot up to 12 hours
  • Keeps cold up to 24 hours
  • BPA-free
  • 18/8 stainless steel
  • Signature powder coat

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Hydro Flask 40oz. Wide Mouth Water Bottle

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Here's what others have to say...

Anyone know the height and diameter of the 40oz bottle? Wondering if it will fit in the holder on my bag.

Best Answer Responded on

I don't have exact measurements, but I have mine in front of me as we speak (see photo). It's no wider than a Nalgene, but a few inches taller and more than a pound heavier when full. If you have an unusually shallow water bottle pocket, it might topple out, but otherwise should be totally fine.

I don't have exact measurements, but I have mine in front of me as we speak (see photo).  It's no wider than a Nalgene, but a few inches taller and more than a pound heavier when full.  If you have an unusually shallow water bottle pocket, it might topple out, but otherwise should be totally fine.
5 5

I understand the cult following now...

  • Familiarity: I've used it once or twice and have initial impressions

I have seen the love people have for the Hydro Flask, but now I understand it. I got my 40 oz. blue flask yesterday, and is becoming on of my favorite pieces of gear. I am able to make tea in the morning when I am getting ready for work, and have hot tea all day!

...so good that I picked up another one!

5 5

Wish I would have never returned

  • Familiarity: I've used it several times

LOVE LOVE LOVE this bottle.
Originally got the purple, loved the color.. thought the bottle was too big. I did return it. HOWEVER after ordering the 21oz bottle I changed my mind immediately and ordered another 40oz.

Love that I can get ice directly from the fridge straight to bottle. Worth every penny!

5 5

Great!!

  • Familiarity: I've used it once or twice and have initial impressions

Took this with me on a very cold day with hot chocolate in it, was gone most of the day, and when I got back to the car it was still Hot.I would recommend this very highly.

5 5

love it!

I love this water bottle, it is by far the best one I have ever owned. It holds a lot of water and it keeps my drink cold for a very long time.

5 5

this is awesome

holds a lot of water keeps things really cold for a long time. favorite water bottle I have ever had

5 5

Awesome

  • Familiarity: I've used it several times

This was my first Hydro Flask and it is awesome. I go snowboarding all the time and it keeps my drinks warm the whole time. I haven't used it to keep things cold yet but im sure it will work good if it keeps it as cold as it does warm.

5 5

Cold as ice

  • Familiarity: I've put it through the wringer

I live in a desert.
I'm active outside.
I LOVE a dose of cold water hydration after a long stupidly-hot summer bike ride.
I leave this full of cold water in my car.
It gets hot enough to fry eggs on the hood.
I return after HOURS on my bike and the water is still VERY COLD.
Awesomely refreshing.
It's amazing.
I wold love to see a 24 and/or 32oz wide mouth version.
I wold collect them all.
You should, too.

Responded on

Check out their website, the have 24/32/40oz models - even a beer growler!

5 5

Amazing

  • Gender: Female
  • Familiarity: I've used it several times

I purchased this because of reviews I was reading on a Disney site. I LOVE these flasks! My coffee stays hot for hours. I have not had a chance to use them for anything cold yet. I did however ask for more of these on my Christmas List!!