Code: WINTER20

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...

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


  • 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!!