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Standard Mouth
21 oz Standard Mouth
$32.95
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Standard Mouth

21 oz Standard Mouth

21 oz Standard Mouth is rated 4.6 out of 5 by 1347.
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$32.95
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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

Similar Standard Mouth Products
  1. 24 oz Standard Mouth 24 oz Standard Mouth

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<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 2.81"
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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https://www.youtube.com/embed/SKjnrvgz-UY?rel=0&enablejsapi=1
Let's Go!

Today is wide open. You lead, we'll follow.

#HeyLetsGo

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:

  • 151 Nonprofits supported nonprofits.
  • $2.5 million Dollars donated donated.
  • 68,822 Bottles donated bottles.
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Reviews
Rated 5 out of 5 by from i bring this everywhere! Love this size, still holds a lot but fits in cupholders and water bottle pockets.
Date published: 2022-05-10
Rated 5 out of 5 by from Love it! Lightweight, perfect size and easy to wash! We bought 6 of them...
Date published: 2022-05-03
Rated 5 out of 5 by from Great size! I purchased this size because my 32 oz stretches my backpack pockets and is so heavy when I go hiking. This is the perfect size for cup holders and backpack side pockets!
Date published: 2022-04-14
Rated 5 out of 5 by from My Best Tumbler Ever Cute and Unique Colors! Really love the color and it does it’s job perfectly. Great for the Office Bottle
Date published: 2022-04-11
Rated 5 out of 5 by from Hawaii proof! Nice color, easy to carry around and keep my drink cold all day long!
Date published: 2022-04-11
Rated 5 out of 5 by from Good product Pretty color and keeps my drink cold all day long!
Date published: 2022-04-11
Rated 5 out of 5 by from very nice very nice quality as always; didn’t expect nothing less
Date published: 2022-04-11
Rated 5 out of 5 by from Great features It really keeps my water temperature for long time. And I love their warranty! My was broken after 3 years and I called they sent me a brand new replacement very quickly!
Date published: 2022-04-09
Rated 5 out of 5 by from Perfect for my needs! I got this bottle a few weeks ago and it is perfect for the gym. It fits about 2 bottle of water and keeps it nice and cold!
Date published: 2022-04-06
Rated 5 out of 5 by from Cute color perfect bottle I had bought this water bottle Because i lost my old one and when I saw the color of this one it was a no brained! I love the color and the technology that.keep my drinks cold!
Date published: 2022-04-06
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Questions

I am looking at the 21 oz. standard mouth Insulated Water Bottle. What lid comes on it...and is there a picture or demo of it somewhere? Thanks...

Asked by: Debboe
It comes with the standard mouth flex cap. You can visit our website www.hydroflask.com to view a picture of the cap.
Answered by: Consumer Service
Date published: 2021-08-18

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: 2021-08-01

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: 2021-08-25

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: 2021-06-15
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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:

  • 151 Nonprofits supported nonprofits.
  • $2.5 million Dollars donated donated.
  • 68,822 Bottles donated bottles.
You May Also Like
  1. Small Flex Boot
    $7.95
    Small Flex Boot - Pacific
    Colors Available
  2. New
    Small Tag Along Bottle Sling
    $34.95
    Small Tag Along Bottle Sling - Birch
    Colors Available
  3. Standard Mouth Insulated Sport Cap
    $9.95
    Standard Mouth Sport Cap
    Colors Available