40oz Wide Mouth Water Bottle + Flex Straw Cap
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Only 2 In stock
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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 797 ratings
Review Summary
Customer Images
Here's what customers have to say
The product is praised for its excellent insulation, keeping drinks cold for long periods, and durable, high-quality construction. Customers appreciate the wide variety of color options, the convenient straw lid, and the large 40oz capacity. Many report being very satisfied with the product's performance. However, some issues are mentioned, such as leakage and the bottle not keeping drinks as cold as expected. Overall, the product is well-liked, with the majority of customers reporting a positive experience.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageOctober 26, 2025
40 oz wide mouth cup
[This review was collected as part of a promotion.] I love it. It’s the perfect size to bring to work daily. The color is awesome.
Originally reviewed on hydroflask.com
October 25, 2025
This is great
[This review was collected as part of a promotion.] This is great. I use it all the time. It holds so much of my drinks. I love it!
Originally reviewed on hydroflask.com
October 25, 2025
good stuff.
[This review was collected as part of a promotion.] bottles are nice, strong, and well insulated. what more could you ask for in a bottle? I think the carry strap will be the eventual item to fail.
Originally reviewed on hydroflask.com
October 24, 2025
Love my flex straw cap
[This review was collected as part of a promotion.] Love my flex straw cap bottle. It's stylish and keeps my drink cold.
Originally reviewed on hydroflask.com
October 21, 2025
Love it
[This review was collected as part of a promotion.] Already smacked it sadly but I love ittt
Originally reviewed on hydroflask.com
October 18, 2025
Hydro Flask review
[This review was collected as part of a promotion.] This hydro flask was a gift for my daughter's 20th birthday. She is in college. She loved the color of the water bottle and appreciated the personalized engraving.
Originally reviewed on hydroflask.com
October 15, 2025
Great bottle
[This review was collected as part of a promotion.] After getting my Hydroflask from a replacement this one looks better and I like the size of this bottle. This size is enough to hold water for me to drink to last all day and since it also keep my water cold for 24 that was great as well.
Originally reviewed on hydroflask.com
October 14, 2025
Amazing color and size
[This review was collected as part of a promotion.] Brand new bottle does not insulate up to 24 hrs and this is the second brand new one I have received as my first did not insulate at all. I love hydroflask but the quality is not what it once was.
Originally reviewed on hydroflask.com
October 12, 2025
Great in-between size
[This review was collected as part of a promotion.] My 32 oz bottle was just a little too small for my workouts. This 40 oz size is perfect. The spill proof lid is excellent and very easy to clean.
Originally reviewed on hydroflask.com
October 9, 2025
Super happy
[This review was collected as part of a promotion.] Love the new hydroflask bottle. Easy to clean and keeps the ice for days
Originally reviewed on hydroflask.com
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