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Hydro Flask
21oz Standard Mouth Water Bottle

4.6534466477809255 out of 5 stars
1059 Reviews
$26.21 - $34.95
Up to 25% off
Color:Fossil

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21oz Standard Mouth Water Bottle

With the Hydro Flask 21oz Standard Mouth Water Bottle, you're able to stay hydrated throughout the course of your work day. The 21oz easily fits in the side pocket of your backpack, shoulder bag, and your car cup holder, while the 18/8 stainless steel construction keeps your hot beverages hot up to 12 hours and your cold beverages cold up to 24 hours.


Details

  • Stay hydrated throughout the day with this water bottle
  • Stainless steel construction is highly durable
  • BPA-Free and phthalate-free for your convenience
  • Keeps beverages hot up to 12 hours
  • Keeps beverages cold up to 24 hours
  • Item #HYF001V
Material
18/8 stainless steel
Volume
21oz
Lid
Standard Mouth
Manufacturer Warranty
limited lifetime

What do you think about this product?

Overall Rating

4.5 based on 1059 ratings

Review Summary

1 Stars - 33 reviews
2 Stars - 25 reviews
3 Stars - 27 reviews
4 Stars - 106 reviews
5 Stars - 868 reviews

Fits Slightly Large

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.
Runs smallTrue to sizeRuns large

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5 out of 5 stars

March 17, 2025

New bottle

[This review was collected as part of a promotion.] This new bottle is fine. I had a previous bottle with a different sip lid that did require the straw. I would have preferred that lid again.

Nancy B.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

March 14, 2025

My daughter was very happy

[This review was collected as part of a promotion.] My daughter was very happy with the replacement after her original bottle broke at the cap.

Travis A.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

March 11, 2025

Love it

[This review was collected as part of a promotion.] What a great color, love the initials too. I will be purchasing more.

William G.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

March 7, 2025

Great Bottle

[This review was collected as part of a promotion.] Just the right size to take to work or school. All the pros of a larger hydro flask in a smaller size. Love it.

Evan M.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

March 6, 2025

Lo recomiendo

Amoo. es color es bello, no pesa tanto y para lavarlo es super fácil

Amanda C.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

February 28, 2025

Perfect gift item

Bought this to replace the one that my daughter lost at her gym. Got this one engraved with her name and it turned out BEAUTIFULLY. There will be no mistaking ownership now. Well done, HydroFlask.

Paula H.
hydroflask.com

Originally reviewed on hydroflask.com

5 out of 5 stars

February 28, 2025

Daily use

[This review was collected as part of a promotion.] I have been using Hydro Flask for decades now. This one is no different in quality and performance and perfect size and color for me for my daily use. Especially to fill in morning and have cold beverage waiting in my car when I get off work, even on the hottest days.

Jon C.
hydroflask.com

Originally reviewed on hydroflask.com

2 out of 5 stars

February 27, 2025

Terribly leaky top

[This review was collected as part of a promotion.] Love Hydro Flasks in general, they’re so great at keeping my drinks hot or cold. This is a perfect size and shape for me. However, the new top leaks so often and I can’t figure out why. It’s not consistent either—happens probably every other morning, sometimes doesn’t leak at all. The days it does leak, it starts immediately and other times it happens later after I’ve been drinking my coffee.

Theresa K.
hydroflask.com

Originally reviewed on hydroflask.com

1 out of 5 stars

February 17, 2025

Defective covers

[This review was collected as part of a promotion.] The cover does not secure - both bottles leak when using

Allyson A.
hydroflask.com

Originally reviewed on hydroflask.com

4 out of 5 stars

February 8, 2025

Hydro Flask Lifer!

[This review was collected as part of a promotion.] I love hydro flask. I have many colors and wanted to add a nice pink shade to my collection. Reef is NOT PINK. Was very disappointed in the color. It appears to be pink online, but it is more of a dark mauve, faded purplish burgundy. *see photo

user image
Jody H.
hydroflask.com

Originally reviewed on hydroflask.com

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