21 oz Standard Mouth
21 oz Standard Mouth is rated
out of
5 by
752.
$32.95
<h2>Your perfect travel companion.</span></h2>
<p>Keep life moving with our 21 oz bottle and Standard Flex Cap. It stashes easily into a small shoulder bag, your pack’s side pocket, or your car cup holder, and holds enough ice cold goodness to keep you going for hours without weighing you down. No wonder it's one of our bestselling water bottles.</p>
Your perfect travel companion.
Keep life moving with our 21 oz bottle and Standard Flex Cap. It stashes easily into a small shoulder bag, your pack’s side pocket, or your car cup holder, and holds enough ice cold goodness to keep you going for hours without weighing you down. No wonder it's one of our bestselling water bottles.
Features
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TempShield™
Our unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure.
Pro-Grade Stainless Steel
Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer - and the durable construction stands up for whatever life brings.
Proprietary Powder Coat
Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere.
Details
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Product Benefits
- Versatile, middle-of-the-road size
- TempShield™ insulation eliminates condensation and keeps beverages cold up to 24 hours and hot up to 12 hours
- Durable 18/8 Pro-Grade Stainless Steel construction
- BPA-Free and Phthalate-Free
- Compatible with Standard Mouth Insulated Sport Cap
- Lifetime Warranty
Size & Dimensions
| 21 oz | |
|---|---|
| Volume | 621 mL |
| Mouth Diameter | 1.91" |
| Diameter | 2.87" |
| Height | 9.4" |
| Weight | 11.3 oz |
Technology
Lifetime Warranty
We stand behind our products.
Hydro Flask guarantees this Hydro Flask product with a limited lifetime warranty against manufacturer defects.
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https://www.youtube.com/embed/SKjnrvgz-UY?rel=0&enablejsapi=1
Hydro Flask supports non-profit organizations focused on building, maintaining, restoring, and providing better access to parks. Since 2017, we have been doing just that:
-
92 Non-profits supported non-profits.
-
$1.5 million Dollars donated donated.
-
26,043 Bottles donated bottles.
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Reviews
Rated 5 out of
5
by
Nicole34 from
Excellent Bottle
I love it! It keeps my drinks cold all day long. Especially love the color.
Date published: 2020-06-28
Rated 5 out of
5
by
migreg1230 from
Hydro Flask 21 oz Standard Mouth - Black
Amazing product. Bought 2 of these to carry on my motorcycle. This size and diameter fit perfectly in my front saddlebag holsters. Chilled both bottles overnight in the refrigerator, prior to my trip, the next day. Added approx. 6 ice cubes and topped the bottles off with iced tea. Left at noon and rode all day. Got home late and forgot to take bottle off of bike when arriving back home. Retrieved the bottles around noon the next day and when opening up the bottles, I found the ice had melted, but the tea was still cold! Bottles never sweated on the outside. Leather holsters were nice and dry. Bought a Sport cap to try on one of the bottles. The rubber seals tight, never leaked, but too tight to use while going down the road. My riding partner has the same bottles and uses the other flip-up spout on his bottles. They worked great and also never leaked. Able to flip up and use while going down the road. The Sport cap has a rigid loop across the top. This causes the bottle to stick up a little higher than with either the flip-up spout, or standard cap. If you have a passenger on the back, this may interfere with the back of their leg. Don't know for sure. 18 oz. bottle (approx. 1-1/2" shorter) may work better, or stick with the flip-up spout and it should be fine. Overall...very pleased and satisfied with this product. Nice tough powder-coated outside finish, should last a lifetime, in my application. Would definitely purchase again.
Date published: 2020-06-27
Rated 5 out of
5
by
Ceridwen from
Cool!
Love my Hydro Flask! My daughter requested one as a birthday present, so I decided to order one for myself. I am not disappointed! I love how it keeps the water cool for quite some time. The water taste fresh and clean. Thank you for such a great product!
Date published: 2020-06-26
Rated 5 out of
5
by
lizze from
the coldest of cold
I have every brand that's decent, and this is by far the best. Nice in the hand, a well made lid that seals well and does not leak. I have not tried using it for hot liquids. It went on a 2 week jaunt in my pop up camper, in the carrying case - it was always at hand.
Date published: 2020-06-25
Rated 5 out of
5
by
Tom55 from
Cold drinks
Keeps drinks cold all day and actually will keep them overnight without the ice melting,great product!
Date published: 2020-06-24
Rated 5 out of
5
by
Paz1 from
Love it
Just what I need when working outside. Keeps my drinks cold
Date published: 2020-06-21
Rated 5 out of
5
by
momster from
Best ever
Exactly what I wanted and promptly delivered even while quarantine was in effect
Date published: 2020-06-17
Rated 5 out of
5
by
Asía P from
The Hype is Real
I bought this because it was on sale and everyone always said good things about it. I could never bring myself to buy it but after using this bottle for 2 days I realized the amazing quality. This bottle is worth every penny! I’ve never had a bottle that has kept my drink SO cold for SO long. It’s great :).
Date published: 2020-06-12
Rated 5 out of
5
by
vaehxo from
LOVE THIS
i bought this expecting it to be like any ordinary water bottle but i'm so impressed. will for sure buy again.
Date published: 2020-06-11
Rated 5 out of
5
by
annalen from
love everything about my hydro flask!
beautiful color, durable, and kept cold for days!!
Date published: 2020-06-07
Rated 5 out of
5
by
Amia from
Great features
I got the fog colored 32 oz bottle and it looks exactly like the pictures and it’s definitely worth purchasing!
Date published: 2020-06-04
Rated 5 out of
5
by
paolagour from
Cute product!
the color it’s so cute and it keeps my drinks cold. Also it’s easy to carry and very aesthetically pleasing. love it! i want every color now!
Date published: 2020-05-31
Rated 5 out of
5
by
qvolleyball from
I love the color!
My favorite color is coral, and that’s basically what color this flask is! It keeps water cold for a while, and even keeps coffee hot! It is super easy to carry around. All in all, it’s a great-sized flask that is very helpful so I can have cold water always.
Date published: 2020-05-28
Rated 5 out of
5
by
fakind from
ok
love it!!! new favorite water bottle. motivates me to drink more loll
Date published: 2020-05-28
Rated 5 out of
5
by
Rangelis09 from
Great
Got my daughter one she loveddd it so glad I got it for her
Date published: 2020-05-27
Rated 5 out of
5
by
Britt1328 from
Love this bottle!
I love this bottle! Perfect size! Keeps my water cold and refreshing! I will always buy all my products like these from Hydro Flask and no one else!
Date published: 2020-05-26
Rated 5 out of
5
by
Maddog 21 from
Color is beautiful!
I bought this about a year ago and I put everything in it. So useful for so many things
Date published: 2020-05-25
Rated 5 out of
5
by
Tlau from
Best for those that don’t drink water
I feel like I’m forcing myself drinking water but this is so convienant and sustainable. I love how cute it looks and the color. Would purchase again
Date published: 2020-05-25
Rated 5 out of
5
by
Maria2 from
Amazing!
I was really hesitant to buy a Hydroflask, mainly for the price, but it was so worth it. It keeps my water cool and it’s so easy to carry. I was also worried about having to twist to open it every time, it really hasn’t been an issue at all. The design is so nicely made too.
Date published: 2020-05-24
Rated 5 out of
5
by
Ally091 from
Perfect for my needs.
I love this bottle. I put water in it before I go to bed, and when I wake up it's still cold. I use the sports cap and love not having to unscrew a lid. Very convenient!
Date published: 2020-05-23
Questions
Are any of the water bottles dishwasher safe?
According to the Dick's Sporting Goods packaging my 24 oz small mouth i just received is dishwasher safe? Amazon is also reporting they're dishwasher safe. But I see no marking on the bottom that says it's dishwasher safe. Please explain
Date published: 2020-07-01
I am getting a metallic taste in my water from the 21 oz flask. I’m surprised as it has 18/10 stainless steel. Is there anything that would get rid of this?
We understand how frustrating treating odors can be, but we have a quick trick to battle the issue: Mix 2-3 Tablespoons baking soda with a small amount of warm water to form a paste. The paste is a nonabrasive scrub and deodorizer. Rinse the flask with warm water. Then wash with regular dish detergent.
Date published: 2020-02-17
Can I use the lid with the straw for coffee in the standard mouth 24 oz bottle
Our Wide Mouth Straw Lid is compatible with all of our Wide Mouth Bottles. Unfortunately, the 24 oz bottle is a Standard Mouth and is not compatible. We have our Standard Flex Cap and Standard Sports Cap that will fit the 24 oz bottle.
Date published: 2020-01-27
Where is this bottle manufactured?
Manufactured in China but shipping from Southaven, MS.
Date published: 2020-01-01
Is there a cap available for purchase that would allow me to use my standard mouth Hydro Flask 21oz with hot drinks? I purchased 2 hoping to use one for hot and the other for cold. However I have not been able to use hot drinks due to the cap. Frustrated
We currently have two caps for the standard mouth flasks. We have the sports cap and the flex cap.
Date published: 2019-11-03
The jade color was available yesterday, but is not now. Will it be available again?
I apologize for the issue you are having. Please contact customer service at 888-584-9376 to discuss this further.
Date published: 2019-10-29
Can big pieces of ice fit in the standard mouth cap
The mouth diameter is 1.91 inches. Ice cubes smaller than this will fit.
Date published: 2019-10-29
how do i add this to my wishlist?
Unfortunately, our website does not have an option to add to a wish list.
Date published: 2019-10-29
Hydro Flask supports non-profit organizations focused on building, maintaining, restoring, and providing better access to parks. Since 2017, we have been doing just that:
-
92 Non-profits supported non-profits.
-
$1.5 million Dollars donated donated.
-
26,043 Bottles donated bottles.