40oz Wide Mouth Water Bottle + Flex Straw Cap
Size:
Quantity
Only 5 In stock
Why We Like The Hydro Flask 40oz Wide Mouth Water Bottle
The Hydro Flask 40oz Wide Mouth Water Bottle is our go-to for long-distance hikes, long car rides, and busy days at the office. With its whopping 40-fluid ounce capacity, it's convenient to stay hydrated during our big adventures, and with the easy-drinking, leak-stopping Flex Straw Cap, sipping has never been simpler. The water stays ice-cold in the vacuum-insulated chamber.
Details
- Large-sized water bottle for hefty hydration
- Powder-coated stainless steel is durable inside and out
- TempSheild double-wall insulation keeps drinks cold for up to 24 hours
- Ice cube-friendly wide mouth opening to aid in keeping water chilled
- Flex Straw Cap makes for easy drinking and is leakproof for stress-free traveling
- Item #HYFZ058
- Material
- 18/8 stainless steel
- Volume
- 40fl oz
- Lid
- Flex Straw Cap
- Dimensions
- 4 x 11.7in
- Claimed Weight
- 1lb 0.8oz
- Activity
- casual, hiking, travel
- Manufacturer Warranty
- limited lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4.5 based on 775 ratings
Review Summary
Customer Images
Here's what customers have to say
The water bottles are generally well-received for their ability to keep drinks cold, durable construction, and variety of color and size options. However, some customers have experienced issues with dents, leaks, and problems with the straw lid design. While the bottles are praised for their performance and style, a few customers had negative experiences with quality control or customer service.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageJuly 9, 2025
Good Water Bottle
[This review was collected as part of a promotion.] I keep upping the size of my Hydroflasks as the hot weather makes more and more water necessary for my daily walks. The 40 oz just about does it and I was able to use the sling from my 32 oz. , still not too heavy to carry around. I prefer Hydroflask to Yeti - the Yeti I bought just didn't keep the water cold long enough. I would not say the Hydroflask is exceptional either on that score, but I think it does a better job.
Originally reviewed on hydroflask.com
July 4, 2025
Love!
[This review was collected as part of a promotion.] The best double wall insulated water bottles. Doesn't leak and I am comforted knowing that these are lead free!
Originally reviewed on hydroflask.com
July 4, 2025
It’s alright
[This review was collected as part of a promotion.] Bottle is good but it actually leaks which is crazy for the price
Originally reviewed on hydroflask.com
July 3, 2025
Disappointed in ability to keep ice or water cold for long periods
[This review was collected as part of a promotion.] Beautiful bottle but unfortunately does not keep ice cold. I can put at least 5 ice cubes in water and about 3 hours later they are almost completely melted. And it’s completely room temp the next day.
Originally reviewed on hydroflask.com
July 1, 2025
Good bottle
Keeps my ice water cold for 1 1/2- 2 days. I love that. But the outside of bottle scratches every easily. Picture is after just 2 days of use. For the price i thought it would be more durable on the outside.
Originally reviewed on hydroflask.com
June 24, 2025
TEST
[This review was collected as part of a promotion.] GREAT
Originally reviewed on hydroflask.com
June 18, 2025
Mine bottle does not work
[This review was collected as part of a promotion.] Mine bottle does not work well. The water does not remain cool for more than two hours.
Originally reviewed on hydroflask.com
June 14, 2025
Marketed as "leak proof" when in fact it does leak
It's still a solid water bottle however since my car doesn't have a cup holder that fits the bottle sometimes it rolls on my seat and does end up leaking. I initially thought I hadn't closed it tight enough but after troubleshooting it a few times I think the design just isn't as leak proof as they say. Maybe a better water bottle for around the house
Originally reviewed on hydroflask.com
June 13, 2025
Black hydro flask
[This review was collected as part of a promotion.] It doesn’t keep ice for more than 2 hours. Only the black one. All other colored ones work fine. I know color has nothing to do with it. It’s just weird that the two black ones we own have the same issue but not the blue or white ones.
Originally reviewed on hydroflask.com
June 13, 2025
I Love Hydro Flask!
[This review was collected as part of a promotion.] I love my Hydro Flask bottles and cups. I think I have at least 20. I collect the different colors and rotate my use. My husband likes the basic blacks and grays. This one was for him. He needed the larger size this time.
Originally reviewed on hydroflask.com
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