21 oz Standard Mouth
$24.71
Regular Price $32.95

21 oz Standard Mouth

21 oz Standard Mouth is rated 4.7 out of 5 by 786.
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$24.71
Regular Price $32.95
Size Chart
Hydro Flask Pack Size Chart
Available Sizes S / M M / L
Torso
Measurement
18 - 19 in 19 - 22 in
43 - 48 cm 48 - 56 cm
Hip
Measurement
22 – 46 in 26 – 46 in
56 – 117 cm 66 – 117 cm
  1. 1. Torso Measurement

    • A. Bring your chin to your chest and feel for the most prominent bony bump where the slope of your shoulders meets the back of your neck. This is your C7 vertebra, and the top of your torso measurement.

    • B. On each side of your body, feel for the top of your hip bones, just below the sides of your ribs. With fingers pointing forward and thumbs pointing backward, draw an imaginary line between your thumbs. This is the bottom of your torso measurement.

    • C. Stand up straight and have a friend with flexible measuring tape measure the distance between your C7 vertebra and the imaginary line between your thumbs. That’s your torso measurement. If you are between pack sizes, go with the smaller size.

  2. 2. Hip Measurement

    While your torso measurement is the best indicator of your pack size, it’s still important to check your hip size when using a hipbelt. To find your hip measurement, wrap a flexible tape measure around the top of your hip bones, just below the sides of your ribs. This measurement is slightly higher than your waistline

<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.

Your perfect travel companion
21 oz Standard Mouth Insulated Water Bottle | Hydro Flask
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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.

TempShield™
Pro-Grade Stainless Steel

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.

Proprietary Powder Coat
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
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Lifetime Warranty
Lifetime Warranty

We stand behind our products.

Hydro Flask guarantees this product with a limited lifetime warranty against manufacturer defects.

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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 from pretty color not my first hydroflask purchase, but I was very much pleased with this one! very nice color, it's almost a "kind of purple."
Date published: 2021-01-13
Rated 5 out of 5 by from Very satisfied I purchased this as a gift for my daughter. She’s been asking fir one and she’s real happy about it and uses it everyday for work.
Date published: 2021-01-07
Rated 5 out of 5 by from Stays cold all day I bought this awhile ago and a lot of the water bottles i own get warm after a couple hours or so but not hydroflask it stays cold for hours , left water in overnight woke up and it was still cold. Very satisfied even bought another for my friend!
Date published: 2021-01-07
Rated 5 out of 5 by from Perfect size! Was looking for something that would fit in my husband’s new car water bottle holder. A thirty dollar water bottle and a luxury car... match made in heaven. Darn you, German engineering! But thank you, Hydro Flask! (Also, I already owned one and have loved it for 4 years now - perfect size for a normal day of going around town!)
Date published: 2020-12-31
Rated 5 out of 5 by from Success! Bought this for one of my sons for Christmas. He loves it. Great design & cool colour. Thank you
Date published: 2020-12-30
Rated 5 out of 5 by from Great for keeping drinks hot or cold! Bought it for my granddaughter who is a nurse and works 12 plus hours per shift! She loves it and the cleaning brush too!
Date published: 2020-12-28
Rated 5 out of 5 by from Beautiful bottle I love this bottle. It’s reasonably lightweight, keeps my water cold for hours upon hours (even when the bottle is sitting in the sun), and the Fog color is even prettier in person.
Date published: 2020-12-27
Rated 5 out of 5 by from FINALLY A WATER BOTTLE THAT WORKS! Bought this for daily walks and every day use at home! Fits in car cup holder! I can drink easily while driving without taking my eyes off the road. Keeps my water cold without ice cubes! I have several of them! I don’t use plastic water bottles any longer! I’m done spending hundreds of dollars on water bottles that don’t work!
Date published: 2020-12-14
Rated 5 out of 5 by from Love it! Very durable, Love the way it keeps water cold for a long time. Highly recommended
Date published: 2020-11-24
Rated 5 out of 5 by from Love! This water bottle is the best I’ve ever had. Water stays cold for a long time.
Date published: 2020-11-21
Rated 5 out of 5 by from Amazing coolage and great overall bottle!!!!!!! When i first saw tghat the bottle was only 50 dollars i was going to get it anyway but once i got it was sooooooo cute and the 12 that I orderd for party favors we amazing. the girls loved them!!! amazing coolage and cute color options. Totally co pletely recomend!!!!!!!!!!!!!!
Date published: 2020-11-09
Rated 5 out of 5 by from excellent feature!! I bought two for my daughter and sons everyday water bottle and they are loving it!! It keeps water cold for my sons school activity. I wish the price is more affordable so I can buy it for my self too.
Date published: 2020-11-01
Rated 5 out of 5 by from Luv Luv Luv I’m enjoying my Mello Yellow bottle it’s keeps my dinks super cold.
Date published: 2020-10-07
Rated 5 out of 5 by from Everything Good I bought this 5 years ago and it still in great shape.
Date published: 2020-10-06
Rated 5 out of 5 by from Good water bottle I use this probably everyday. It keeps liquids cold for a pretty long time.
Date published: 2020-09-18
Rated 5 out of 5 by from This is the best water bottle I’ve ever had I’ve had this bottle for almost a year and it still works perfect definitely worth the price
Date published: 2020-09-18
Rated 5 out of 5 by from The BEST! My daughter absolutely LOVES this beautiful Watermelon color Hydro Flask bottle that I gave as part of her birthday gift! Suits her needs perfectly. Just the right size for work and fits perfectly in her car car cup holder!
Date published: 2020-09-13
Rated 5 out of 5 by from Keeps water cool! Great product. Fits regular carrying device. So nice to have cool water in AZ after multiple hours
Date published: 2020-09-01
Rated 5 out of 5 by from I like it , what can I say Bought these (2) to replace "plastic" bottles in which the water always tasted like plastic. Stainless interior of the Hydro Flask give a much clean taste.
Date published: 2020-08-29
Rated 5 out of 5 by from Great bottle I bought this bottle a month ago and all of my family have one we so happy with them
Date published: 2020-08-19
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Questions

Do they float? I'm looking for something with a closed lid to use on my kayak and with the possibility of flipping the kayak I would like to make sure I will be able to locate the flask if that were ever to happen.

Asked by: Pat G
Hello, I do apologize about the longer response time! No, with the flask being filled they would not float. They may float if they happened to be empty at the time but I cant guarantee that.
Answered by: Consumer Service
Date published: 2020-11-06

Will this size fit in a standard cupholder?

Asked by: gbkicks
Hello, Thanks for reaching out! I do apologize for the long response time! Yes, the standard mouth bottles usually do tend to fit inside a standard cupholder!
Answered by: Consumer Service
Date published: 2020-11-05

I bought my Hydro Flask at Dick&rsquo;s Sporting Goods will I still be offered the lifetime warranty?

Asked by: Noemi
Yes, it is covered under our lifetime warranty for manufacturing defects.
Answered by: Consumer Service
Date published: 2020-11-05

Are any of the water bottles&nbsp;dishwasher safe?&nbsp;

Asked by: SEO1
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
Answered by: Tom Rufo
Date published: 2020-07-01

I am getting a metallic taste in my water from the 21 oz flask. I&rsquo;m surprised as it has 18/10 stainless steel. Is there anything that would get rid of this? &nbsp;

Asked by: David Werner
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.
Answered by: Consumer Service
Date published: 2020-02-17

Can I use the lid with the straw for coffee in the standard mouth 24 oz bottle

Asked by: Reacher
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.
Answered by: Consumer Service
Date published: 2020-01-27

Where is this bottle manufactured?

Asked by: j1234
Manufactured in China but shipping from Southaven, MS.
Answered by: Consumer Service
Date published: 2020-07-28

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

Asked by: Limey
We currently have two caps for the standard mouth flasks. We have the sports cap and the flex cap.
Answered by: Consumer Service
Date published: 2019-11-03
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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.
You May Also Like
  1. $9.95
    Standard Mouth Sport Cap
    Colors Available
  2. $5.96
    Regular Price $7.95
    Hydro Flask Small Flex Boot - Watermelon
    Colors Available
  3. $17.48
    Regular Price $34.95
    Hydro Flask Small Tag Along Bottle Sling - Goldenrod
    Colors Available