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The Hydro Flask 40oz Water Bottle isn't messing around when it comes to ample hydration. This girth-some bottle ensures you have plenty of H2O for a day on the trails, and the food-grade stainless steel material keeps funky odors at bay. This double-wall vacuum insulated flask also keeps cold items cold for at least 24 hours, and hot items hot for twelve.

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5
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4 3
3 2
1 1
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Hydro Flask 40oz. Wide Mouth Water Bottle

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Here's what others have to say...

5 5

Just like a dream!

  • Familiarity: I've put it through the wringer

Just like the 18oz bottle, this thing kicks some serious ass! I love that I can load it up with cold water, take it into hot yoga and still sip on my cold water through the heat. The size is a little awkward at first, but it's nice not having to always refill.

5 5

Keeps my water cold in the car

  • Familiarity: I've put it through the wringer

This is my second year using this bottle and I think it is great my uses. During the summer when I go down to the Utah desert to do some slot canyons I fill this thing full of ice and the rest with water and it will last a good 48 hours before getting to room temperature. Did I mention I leave it in the hot car all day? I love my cold water so this is a great bottle! I hear I doesn't hold Hot stuff as long, but for my use I'm giving it 5 Stars!

The cap does have a Lifetime warranty through Hydro Flask, so If you ever drop the bottle and break the cap just contact Hydro Flask and they'll send you a new one for free!

How much does the empty 40 oz bottle...

Posted on

How much does the empty 40 oz bottle weigh?

Responded on

According to this guy it comes in at 16.4 ounces. Ouch. (http://woodtrekker.blogspot.com/2012/12/hydro-flask-40oz-insulated-bottle-review.html)

5 5

Warm water on a cold climb

  • Familiarity: I've used it several times

I test ran this bottle during some ice climbing in Ouray, and it was a beautiful thing not to get brain freezes while I was hydrating throughout the day. A little on the heavy side for mountaineering, but still pretty great. It recently fell off my counter and onto the floor and got slightly dented on the bottom, but still seems to insulate fine.

5 5

My favorite bottle from Hydroflask

  • Familiarity: I've put it through the wringer

If you've made it this far, just add this to your cart honestly.

You won't be disappointed. I've had every size of hydro flask and this one is my favorite. It may be a little large for the average person. Most of the time when I pull it out in class or in public I get some pretty funny looks because of the size of it.

Ice will last a few days in this bad boy, which makes it super convenient to just refill and always have cold water. This bottle has changed my life, haha I use it every day, and never go dehydrated.

If you're looking for a beastly water bottle to quench your massive thirst then BUY IT!

4 5

great addtion

  • Familiarity: I've used it several times

I've paired this with my 21oz Hydro Flask. The 21oz is my go-to size. This 40oz is what I throw in the pack or the car if I am going to the outdoors and don't have a need for pack & bladder. Keeps the liquid cool and I can guzzle from this bahama-mama or I can refill the 21oz or the dog bowl.

3 5

It's ok

  • Familiarity: I've used it several times

I wanted to like this - its huge, seemingly bomb-proof, and kinda heavy, so it feels a bit too bulky for backpacking or lugging around on a day hike, but is just the perfect size for desk-side hydration (less trips to the water cooler). It does keep your liquids hot or cold, and does the job really well. My problem came from drops #1 and #2 - now, I'm used to water bottles denting, cracking, and whatnot OCCASIONALLY when dropped, but the first time this bad-larry felt the ground after falling out of my car (maybe a foot and a half) the lid cracked and popped off spilling all my water for the day - awesome! Fast forward a week later of me carefully carrying around a broken-capped bottle to a second fall was from about waist high - it was open, and now the wide-mouth opening is somewhat of an oval shape. In summary: Does the job well - fits with other hydro flask lids, but has some durability issues (or else, im just really rough on my waterbottles....)

5 5

Awesome

  • Familiarity: I've put it through the wringer

Love this bottle and does as advertised. Water stays the same temperature as it was when you put it in for hours.

4 5

winter water

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

I got this for winter camping and to keep my water from freezing I have been using it for a few weeks now and so far so good on my 1 camping trip i had no freeze issues and it has not frozen in the car when i left it over night after work.. it also screwed right onto my MSR water filter so i was able to fill it directly. the only drawback is weight. it is quite heavy empty, but worth it for the insulation.

5 5

Luv this Flask

The best investment as far as a water bottle, ice last all day and water stays cold added the flip lid for easy drinking, no leaks, gotta luv it. Do they make a wide mouth in a 21 oz ?

5 5

Perfect All Around Thermos

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

Hot or Cold, it will not matter. This thermos is wonderful. It keeps your hot liquids hot and your cold liquids cold and is the perfect all around bottle. I found the 40oz bottle to be the perfect size for my needs.

Perfect All Around Thermos
5 5

Nice bottle

  • Familiarity: I gave it as a gift, but have feedback to share

I got this for my fiancee as a gift and it was much bigger than I expected, she loved it.

5 5

Awesome Bottle

  • Familiarity: I gave it as a gift, but have feedback to share

I bought this as a gift for my boyfriends parents, and they love it! It is the perfect size for them to take camping or horseback riding. Not to mention how well it keeps your liquids insulated! It bottle keeps things hot or cold for hours. They are very happy with it!!

5 5

Only bottle you need

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

I am so glad to have found these bottles! After a summer trip to Bend, OR and randomly finding these there (and later realizing it originates from Bend) filled up these bottles with ice cold water, alcoholic beverages, etc and took it floating on the river on a 90 degree day.. friends and I we were sippin on ice cold liquids and getting our sun on for sure. Haven't tried hot liquids yet, but I am certain they will still perform just as well. Highly recommend these hydros. :)

5 5

Best bottle EVER

  • Familiarity: I've used it several times

Keeps ice frozen all day, even without ice your water is ice cold! Love it love it love it.

5 5

Never buy another water bottle again

Keeps my coffee hot for 3-4 hours without using the preheat method, with the preheat method it will last 6+. Ice will last all day. This thing is a performer of the highest quality, you won't be disappointed. It is a bit on the heavy side, leave it at home if you're going backpacking.

Did I mention the lifetime warranty? What are you waiting for?

4 5

It's a thermos

  • Familiarity: I've used it several times

I bought the 40oz over the other options with the intention of using it for backpacking and the average work day. The build quality is decent, however, the lid is the weak point of the design. It does hold cold temps really well and warm temps pretty good. I don't really think it's practical for backpacking but it makes a nice work thermos, minus the screw on cup that would increase the practicality of hot beverages over winter.
It's cool, just not blow your mind cool. It's a thermos.

5 5

You wont be disappointed!

  • Familiarity: I've put it through the wringer

By far the best water bottle I have ever bought! It does not sweat at all, and stays dry ...no condensation whatsoever! Its absolutely amazing to see the ice still present after the entire day has passed ! Im really pleased, try one, I know you will love it just as much as I do!

5 5

The very BEST water bottle on EARTH!!

  • Familiarity: I've put it through the wringer

Not even brutal Texas heat affects the Hydroflasks ability to keep my water cold. I mainly use it when I'm practicing Bikram yoga, but I never leave home without it! Absolutely love it!!

5 5

So Cool

  • Familiarity: I've put it through the wringer

Yes cool, Amazing bottle, keep any Liquid cold for hours, I left this bottle in my car for a few hours with Ice and water, When I came back to drink it I expected it to be warm the bottle was hot to the touch but inside it was Ice cold still and their was still Ice.

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