21 oz Standard Mouth
$32.95
Regular Price $32.95

21 oz Standard Mouth

21 oz Standard Mouth is rated 4.6 out of 5 by 1071.
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$32.95
Regular Price $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

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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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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:

  • 122 Nonprofits supported nonprofits.
  • $1.9 million Dollars donated donated.
  • 55,958 Bottles donated bottles.
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Reviews
Rated 5 out of 5 by from Hydro Flask Absolutely love these bottles in every size! I have the 32oz bottles in 4 different colors and recently bought this 21oz for my brother and another for my mom. They love them! They keep your water cold and I use the coffee mug as well! Highly recommend.
Date published: 2022-01-24
Rated 5 out of 5 by from A great flask! I've been using this daily since I've received it to make iced coffees in. I love it! The ice cubes stay frozen for hours in it. I've literally forgotten it at home after I left for work accidentally & when I returned home the ice cubes were still cubes. Doesn't spill. I also like the little handle which you can put down to the sides. A great flask!
Date published: 2022-01-24
Rated 5 out of 5 by from Love this! This Hydro Flask 21 oz standard water bottle is my new favorite drinking vessel. This bottle keeps my hot beverages hot and my cold beverages cold for an extended period of time. This bottle is easy to carry as well.
Date published: 2022-01-24
Rated 5 out of 5 by from Nice This is a nice bottle for the size. I’ve dropped on the ground a couple times and it doesn’t break. It seems to keep the water very cold for long periods of time. I like the color a lot. I believe you can put all products in it but I haven’t done that yet
Date published: 2022-01-23
Rated 5 out of 5 by from Maravilloso!!! It definitely Hydro Flask 21 oz Standard Mouth - Pacific exceeds my expectations, I take it everywhere, it keeps my drinks cold perfect when the weather in my state (Fl) is high or when the temperature drops these days, I use it for my coffee or hot tea, I drive for 40 minutes at my job and keeps the drink hot or cold, it came to my hands after looking for a bottle in different brands, it is resistant and very good quality, I have recommended it very well to my friends and family, they will have a bottle for a long time, awesome, i love it!!!
Date published: 2022-01-23
Rated 5 out of 5 by from Take It Everywhere! This is by far my favorite beverage flask. I use it for hot and for cold drinks and it maintains the temperature for an adequate amount of time. I like that it is a 21-ounce size which gives me plenty of room to fill and take with me wherever I go. Best of all, is that it fits my hand and car cupholder. Overall, I give this Hydro-Flask 5 stars for design, color and temperature holding.
Date published: 2022-01-21
Rated 5 out of 5 by from Durable The Hydro Flask 21oz flask has been great for my early morning drives. I fill it full of hot coffee and it's still nice and hot 45 min later when I make it to the office. The mouth size is perfect and doesn't allow for easy over consumption. The fit and finish is great. It's very durable, but we hand wash any way.
Date published: 2022-01-20
Rated 5 out of 5 by from I love this water bottle! I got this, because I needed a sturdy, quality bottle to hold my drink while I am working or doing any tasks where cold or hot refills are handy. I have to say, this exceeds my expectations by far! I have used this in hot weather. when traveling to warm climates, for 6-8 hours and still had ice in my drink! When returning home to my colder season, I filled this with steaming hot tea, and sent it to work with my husband who works in the colder climates, and he said that he still had steam after over 6 hours! This water bottle is amazing! I also love it's bright blue color, which makes it very easy to spot amongst other cups at my job. This is easy to clean, and the hard yet lightweight aluminum construction makes it a tough cup which I like so it doesn't get scratched or dented easily. I can't say enough good things about this cup! My husband is getting one for himself, and wants to get one for each of our kids! I have recommended this to multiple of my coworkers and friends, and they are all going to get their own!
Date published: 2022-01-20
Rated 5 out of 5 by from Really like this bottle I have seen this popular brand for years but have never tried it. It has really been a great addition to our water bottle game. We have only used it for water but it keeps it nice and cold for a long time. It's not too big around so we gave to our 6 year old daughter to carry to school. Overall a great product.
Date published: 2022-01-18
Rated 5 out of 5 by from Keeps the water cold Gave this to my Granddaughter for Christmas and she loves it.
Date published: 2022-01-18
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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:

  • 122 Nonprofits supported nonprofits.
  • $1.9 million Dollars donated donated.
  • 55,958 Bottles donated bottles.
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