Bottles

21 oz Standard Mouth

$32.95
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Gallery Image 4238
Gallery Image 1987
Gallery Image 4650

Bottles

21 oz Standard Mouth

$32.95

Lifetime

  • Flex Cap
    Flex Cap
    Included
  • Sport Cap - +$6.00
    Sport Cap
     
$32.95

Quantity

Customize Purchase via Dealer

Sale discount on this color will be automatically applied in cart.

Overview

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.

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
  • TempShield

    Tempshield

    Colder. Hotter. Longer.

    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

    Pro-Grade Stainless Steel

    Pure and refreshing. Every time.

    Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer—and the durable construction stands up to whatever life brings.

  • Proprietary Powder Coat

    Proprietary Powder Coat

    Comfortable and durable.

    Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere.

  • Lifetime Warranty

    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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Overview & Specs

Overview

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.

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

  • TempShield

    Tempshield

    Colder. Hotter. Longer.

    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

    Pro-Grade Stainless Steel

    Pure and refreshing. Every time.

    Made with 18/8 pro-grade stainless steel to ensure pure taste and no flavor transfer—and the durable construction stands up to whatever life brings.

  • Proprietary Powder Coat

    Proprietary Powder Coat

    Comfortable and durable.

    Our proprietary powder coat means an easy-grip, sweat-free, and extra-durable bottle that you can take anywhere.

  • Lifetime Warranty

    Lifetime Warranty

    We stand behind our products.

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

Video

Reviews/Q&A

  • Reviews

  • Q & A

  • 21 oz Standard Mouth is rated 4.7 out of 5 by 625.
    Rated 5 out of 5 by from Buy it’s great buy buy buy buy buy it because it’s such a great bottle
    Date published: 2019-11-07
    Rated 5 out of 5 by from Great Features! I have like 10 and I can’t get enough GREAT QUALITY AND BEAUTIFUL COLORS
    Date published: 2019-10-28
    Rated 5 out of 5 by from Luv Luv Luv my Jade Hydroflask Luv it Can’t wait to order more! ❤️❤️❤️❤️❤️❤️❤️❤️
    Date published: 2019-10-24
    Rated 5 out of 5 by from Wide mouth is the perfect diameter. I bought a HydroFlask for my girlfriend and me about a month ago. We love the colors we chose, and I just took mine to New York on vacation! I'll never be without one!
    Date published: 2019-10-22
    Rated 5 out of 5 by from never loved another water bottle quite like this Bought a couple weeks ago and has quickly become something I can’t live without, it goes everywhere with me. Water stays insanely cold and the ice literally never melts. I could put ice in there and it would still be there 24 hours later. Not enough good things to say about this. It’s super durable, I’ve already dropped it a bunch because I’m a butter fingers. But yeah I love this thing
    Date published: 2019-10-21
    Rated 5 out of 5 by from Amazing durability. I bought this a few weeks ago and can honestly say I love it so much. Water stays chilled all day long. The exterior durability is fantastic and has survived serval drops.
    Date published: 2019-10-09
    Rated 5 out of 5 by from My daughter loves her Hydro Flask Super popular and stylish. The new Jade color is very pretty and my daughter uses it every day for school and sports.
    Date published: 2019-10-07
    Rated 5 out of 5 by from Great for School Just have to my son for his birthday and he already loves having it as his water bottle at school. Very durable and fits great in backpack.
    Date published: 2019-10-04
    Rated 5 out of 5 by from Keeps drinks cold and carbonated Love this flask. Doesn’t leak and keeps the liquid as it’s supposed to be. Highly recommended.
    Date published: 2019-09-29
    Rated 5 out of 5 by from Love it! I’m always on the move and I never drank enough water because I have to drink it ICE COLD! My hydro flask fits right in my back pack and I take it everywhere with me. I’m getting my grandmother won for Christmas
    Date published: 2019-09-22
    Rated 5 out of 5 by from Amazing bottle I loved this bottle, I got it for Christmas and I loved it. Really heavy duty and is long-lasting. I really recommend.
    Date published: 2019-09-22
    Rated 5 out of 5 by from Great features I bought this a month and I’m in love with the color I got. I keeps my water cold all day
    Date published: 2019-09-21
    Rated 5 out of 5 by from AMAZING! I bought this and im glad i did. It has amazing colors and holds alot! i would suggest this to people who want waterbottles that hold lots!
    Date published: 2019-09-20
    Rated 5 out of 5 by from nice bottle! very durable, nice, would 100% recommend, good price !!!
    Date published: 2019-09-20
    Rated 5 out of 5 by from Great price This Hydro Flask I a great Price compared to the other I have seen.
    Date published: 2019-09-20
    Rated 5 out of 5 by from Best water bottle! I bought my hydro about a month ago and I absolutely love it!! It keeps my water cool for the whole day!
    Date published: 2019-09-20
    Rated 5 out of 5 by from AMAZING I was gifted an 18 oz wide mouth and I loved it now I’m looking forward to getting a 21 oz standard mouth
    Date published: 2019-09-20
    Rated 5 out of 5 by from Easy to carry around I bought this about two months ago and I’m so happy I did it has helped me out so much especially when I go out for a run.
    Date published: 2019-09-20
    Rated 5 out of 5 by from Great features I bought it awhile ago and it’s amazing it keeps everything cold on the hottest days would recommend!
    Date published: 2019-09-20
    Rated 5 out of 5 by from stays cool really long and worth the price it’s the best water bottle i ever bought . it stays cold for so long. I’m a professional lacrosse player and it’s great!
    Date published: 2019-09-20
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  • 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

    The jade color was available yesterday, but is not now. Will it be available again?

    Asked by: Lindsayb
    I apologize for the issue you are having. Please contact customer service at 888-584-9376 to discuss this further.
    Answered by: Consumer Service
    Date published: 2019-10-29

    Can big pieces of ice fit in the standard mouth cap

    Asked by: unknown123456
    The mouth diameter is 1.91 inches. Ice cubes smaller than this will fit.
    Answered by: Consumer Service
    Date published: 2019-10-29

    how do i add this to my wishlist?

    Asked by: maroonscrunchie8
    Unfortunately, our website does not have an option to add to a wish list.
    Answered by: Consumer Service
    Date published: 2019-10-29

    Can I use the bottle to keep milk cold? I know some metals are not recommended to be in contact with milk.

    Asked by: Jsyd
    Yes, milk should be fine! We would just suggest taking extra care with cleaning after putting anything besides water in the flask.
    Answered by: Consumer Service
    Date published: 2019-10-28

    If I order 10 bottles, can a logo be imprinted on them?

    Asked by: Sandy33
    No. We recommend that you take them to a local engraver of your choosing.
    Answered by: Consumer Service
    Date published: 2019-10-27

    Are any of the water bottles dishwasher safe? 

    Asked by: SEO1
    no they are hand wash only
    Answered by: karen452
    Date published: 2019-07-02

    Does the height mentioned above count the cap as well or is it just the height of the flask without the cap?

    Asked by: jjff277
    The bottle stands at about 8.5" tall without it's cap. With the cap, it stands at about 9.4" tall.
    Answered by: Consumer Service
    Date published: 2019-06-07
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