40oz Wide Mouth Flex Cap 2.0 Water Bottle
Size:
Quantity
Why We Like the 40oz Wide Mouth Water Bottle with Flex Cap 2.0
For an ice cold sip of water on the ready all day long, we fill up Hydro Flask's 40oz Wide Mouth Water Bottle with Flex Cap 2.0. Our thirst quencher stays pure thanks to the zero-flavor transfer property of pro-grade stainless steel, so when we reach the lookout, we can revive our soul with the refreshing straight-from-the-mountain taste of unadulterated H2O. The double-wall vacuum locks in beverage temps, whether we want that crisp sip on a summer hike or a steaming flow of coffee on cold morning commutes.
Details
- Stylish and well-insulated water bottle built for daily use
- 40oz capacity keeps you hydrated on even your longest adventures
- Wide mouth boasts a smooth flow and compatibility with other lids
- Flex cap offers excellent durability and an easy grab handle
- Stainless steel construction is durable and offers a clean look
- TempShield insulation stops condensation and maintains temperature
- BPA-Free and Phthalate-Free for your peace of mind
- Item #HYFZ01H
- Material
- 18/8 pro-grade stainless steel
- Volume
- 40oz (1182mL)
- Lid
- wide mouth
- Dimensions
- [diameter x height] 3.58 x 11.2in [mouth diameter] 2.26in
- Claimed Weight
- 1lb 1.6oz
- Manufacturer Warranty
- lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 1083 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.Customer Images
Here's what customers have to say
The water bottles are highly regarded by customers for their ability to keep drinks cold for hours, wide mouth design, and durable construction. Customers appreciate the variety of color and size options, as well as the lifetime warranty. While some experienced minor issues like dents or leaks, the company's customer service was praised for resolving these problems. Overall, the water bottles are considered excellent quality products that customers are very satisfied with and would recommend.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageJuly 15, 2025
Terrible durability, broken bottle after less than 60 days
[This review was collected as part of a promotion.] After less than 60 days the inner bottle seems to have separated from whatever connects it to the outer shell at the bottom, and it rattles when you shake it. This makes me think the insulation has been compromised and there is now potential for water to get into the insulation space, where mold could grow. Pretty disappointed that this “name brand” and fairly expensive bottle failed almost immediately. If you actually USE your water bottle, do not buy one of these. Any minor drop, ding or bang might break whatever flimsy sheet metal they use to create the insulated section.
Originally reviewed on hydroflask.com
July 11, 2025
Beautiful Tin Can Garbage
[This review was collected as part of a promotion.] Won't keep refrigerated water cold more than 30 minutes. Absolutely worthless. Might as well be drinking out of a tin can. Beautiful and completely worthless. Overpriced garbage. Will never support Hydro Flask again
Originally reviewed on hydroflask.com
July 9, 2025
Great Bottles
[This review was collected as part of a promotion.] I am very please with my bottles. Water stays cold for a long time. Color is beautiful.
Originally reviewed on hydroflask.com
July 8, 2025
BEST water bottles EVER!
[This review was collected as part of a promotion.] I have been purchasing these bottles since before the company had their approved patent! They are the BEST! I like my water cold and my tea hot; the bottles do a good job of doing both! They make great gifts, I don't know how many I have purchased, but several. Thank you for the uncomplicated warranty availability also!
Originally reviewed on hydroflask.com
July 2, 2025
<3 hydroflask
[This review was collected as part of a promotion.] Love my new bottle! Keeps drinks cold all night and into the next day.
Originally reviewed on hydroflask.com
June 24, 2025
Colors online look different than in person
[This review was collected as part of a promotion.] I love hydroflasks as a product. Absolutely no complaints there. However, I’ve had some recent issues with color discrepancies. The color I purchased was not what was advertised. On the website it was a dark orange and in person it’s an unpleasant, feculent brown. This is the second hydroflask I have purchased with this issue. The former one was displayed on the website as a salmon color and the flask I received was a bright pink. I doubt I will be purchasing off the website in the future, and will instead look for hydroflasks in-person.
Originally reviewed on hydroflask.com
June 18, 2025
Love It!
[This review was collected as part of a promotion.] Love my 40 oz Hydro Flasks! It’s the only way I drink water throughout the day…
Originally reviewed on hydroflask.com
June 5, 2025
Great water bottle, thought the
[This review was collected as part of a promotion.] Great water bottle, thought the color would be a little bit lighter grey but otherwise happy with it!
Originally reviewed on hydroflask.com
May 29, 2025
Sometimes leaks
[This review was collected as part of a promotion.] Seemed fine until it leaked. Mouth piece that covers the hole doesn’t keep it from leaking. A rather unpleasant surprise while hiking
Originally reviewed on hydroflask.com
May 28, 2025
Great Product
[This review was collected as part of a promotion.] As always, impressed with the quality and insulation on this.
Originally reviewed on hydroflask.com
Do you have a question about this product?
November 27, 2022
Is the color Goji red? Or is more of an orange or pink?
Originally reviewed on hydroflask.com
August 12, 2022
Does the 40 oz wide mouth bottle generally fit in a backpack water bottle holder?
Originally reviewed on hydroflask.com
August 3, 2022
Why there is no baby blue "Frost" color for the wide mouth 40oz bottle ?? :( Can't even request a customize order.
Originally reviewed on hydroflask.com
September 1, 2021
Is 40 oz wide mouth eggplant available in Canada? I can't seem to find it here.
Originally reviewed on hydroflask.com
December 3, 2020
Which flask fits in a car cup holder?
Originally reviewed on hydroflask.com
August 20, 2020
Will the 40 oz wide mouth bottle in a car's cup holder?
Originally reviewed on hydroflask.com
August 13, 2020
is it ok to put lemon or lime in my bottle, or will the acid of the fruit eat away at the insides?
Originally reviewed on hydroflask.com
May 31, 2020
Does the straw cap fit the 40oz bottle? Does the straw reach all the way to the bottom of the 40oz bottle, as it would function regularly in the 32oz bottle? Or is it too short? If so, are there longer straw attachments?
Originally reviewed on hydroflask.com
May 21, 2020
Can it fit in a car cup holder?
Originally reviewed on hydroflask.com
April 20, 2020
hi. i was wondering if you will bringing back the light pink color for the 40 OZ anytime soon?
Originally reviewed on hydroflask.com