Bottles

21 oz Standard Mouth w/ Sport Cap

$35.95
21 oz Standard Mouth w/ Sport Cap

Bottles

21 oz Standard Mouth w/ Sport Cap

$35.95


  • Sport Cap
    Sport Cap
    Included
  • Flex Cap - -$6.00
    Flex Cap
     
$35.95

Quantity

Purchase via Dealer

Lifetime

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

Overview

Hydration on the go.

They're pretty much the perfect pair—our 21 oz Standard Mouth Bottle and our insulated Sport Cap. Together, they're your go-anywhere hydration companion. It stashes easily in a small shoulder bag, your pack’s side pocket, or your car cup holder, and holds enough to keep you going for hours without weighing you down.

Product Benefits

  • Versatile, middle-of-the-road size, equipped with our insulated Sport Cap
  • 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 our Standard Mouth Flex Cap
  • Lifetime Warranty
  • Sport Cap is not intended for use with hot liquids and is not leakproof

Size & Dimensions

21 oz
Volume 621 mL
Mouth Diameter 1.91"
Diameter 2.87"
Height 10.4"
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.

  • 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.

  • BPA-Free

    BPA-Free

    Sip and enjoy.

    Our products are BPA-free for ultimate purity. Stay refreshed and worry-free.

  • Lifetime Warranty

    Lifetime Warranty

    We stand behind our products.

    Hydro Flask guarantees every Hydro Flask product with a limited warranty against manufacturer defects. Hydro Flask Hydration, Tumblers, Coffee, Beer, Wine & Spirits, Food, Large Capacity Hard Goods, and Hard Goods Accessory Products carry a limited lifetime warranty against manufacturer defects for the life of the product.

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Overview & Specs

Overview

Hydration on the go.

They're pretty much the perfect pair—our 21 oz Standard Mouth Bottle and our insulated Sport Cap. Together, they're your go-anywhere hydration companion. It stashes easily in a small shoulder bag, your pack’s side pocket, or your car cup holder, and holds enough to keep you going for hours without weighing you down.

Product Benefits

  • Versatile, middle-of-the-road size, equipped with our insulated Sport Cap
  • 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 our Standard Mouth Flex Cap
  • Lifetime Warranty
  • Sport Cap is not intended for use with hot liquids and is not leakproof

Size & Dimensions

21 oz
Volume 621 mL
Mouth Diameter 1.91"
Diameter 2.87"
Height 10.4"
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.

  • 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.

  • BPA-Free

    BPA-Free

    Sip and enjoy.

    Our products are BPA-free for ultimate purity. Stay refreshed and worry-free.

  • Lifetime Warranty

    Lifetime Warranty

    We stand behind our products.

    Hydro Flask guarantees every Hydro Flask product with a limited warranty against manufacturer defects. Hydro Flask Hydration, Tumblers, Coffee, Beer, Wine & Spirits, Food, Large Capacity Hard Goods, and Hard Goods Accessory Products carry a limited lifetime warranty against manufacturer defects for the life of the product.

Video

Reviews/Q&A

  • Reviews

  • Q & A

  • 21 oz Standard Mouth w/ Sport Cap is rated 4.3 out of 5 by 52.
    Rated 5 out of 5 by from Works Perfectly! Bought this water bottle for home and daily used. I was excited to customize with it stickers, and now that I have, it’s personalized and I love it. Once left it in my room for around 7 hours and when I returned the water was still cold as ice, love it!
    Date published: 2019-03-19
    Rated 5 out of 5 by from Amazing I never drink out of water bottles unless they are plastic but this has changed my life
    Date published: 2019-03-15
    Rated 5 out of 5 by from Great water bottle!! Keeps drinks cold for days-so great! I would highly recommend
    Date published: 2019-03-12
    Rated 5 out of 5 by from So many compliments!! I was in the market for a new hydroflask since my old one had accidentally been run through the dishwasher a few too many times. Every time I walk around campus or have my water bottle out in class, I am always receiving so many wonderful compliments on this lovely blue color. love. love. love
    Date published: 2019-03-11
    Rated 5 out of 5 by from Love it! Very durable and easy to carry. Best on the market.
    Date published: 2019-03-08
    Rated 5 out of 5 by from Stays cold very long time! Had for 1 month now and very impressed. My daughter uses it for basketball and she loves it. Keeps her water cold for a very long time!
    Date published: 2019-03-02
    Rated 5 out of 5 by from The ‘Cadillac’ of water bottles! I owned one 24oz, sport top, HydroFlask. I have just purchased a 2nd one. As represented, it does not leak, does not ‘sweat’ & keeps water cold for hours. Perfect fit for treadmill bottle holder & I have the 2nd one waiting for me in the car post work-out. Also great for taking to work. Two thumbs up!!!
    Date published: 2019-03-02
    Rated 5 out of 5 by from Well made and easy to use and clean! We have many hydroflasks and they are always reliable - they keep drinks extremely cold and are easy to clean.
    Date published: 2019-02-27
    Rated 5 out of 5 by from Enjoy hydration I left my first Hydro Flask behind at a event I attended. When I went back to retrieve the flask it had disappeared and was not at the lost and found. I missed it so much, but didn't want to spend the $ on a new Hydo Flask, but I found that the containers I had in my cupboards didn't provide the same quality of drinking pleasure. Hard to explain, but the water texture is so much better with the Hydo Flask! I recently purchased on sale, a color being discontinued in red so the flask would stand out and hopefully I won't leave this one behind.
    Date published: 2019-02-27
    Rated 5 out of 5 by from Perfect Gift I picked this up for my girlfriend and she loved it. Have no complaints. Would be nice if they could add a straw feature for the smaller bottle so it could be drank upright though.
    Date published: 2019-02-23
    Rated 5 out of 5 by from Hot or Cold its the Best The Lifeguards use it every day. Weather... Hot or Cold it keeps the soup hot for several hours, the ice barely melts sitting in the sun, and the flask never sweats. Won't leave home without it.
    Date published: 2019-02-21
    Rated 5 out of 5 by from Hydro Perfect! Perfect Hydro Flask...perfect size, perfect color and perfect sip top!
    Date published: 2019-02-20
    Rated 5 out of 5 by from Love it! I bought this a little over a month ago and love it. I like the fact that it keeps ice for at least 3 days.
    Date published: 2019-02-19
    Rated 5 out of 5 by from Best water bottle I’ve ever owned! I bought this water bottle 2 weeks ago and I use it every day. It keeps my water SO cold! I even had ice cubes in it two days later!
    Date published: 2019-02-18
    Rated 5 out of 5 by from Love it. Better than any product yeti has ever mad Recommended by my daughter. It’s perfect for my workouts.
    Date published: 2019-02-16
    Rated 5 out of 5 by from Love it I bought my flask 3 weeks ago and I am loving my bottle. Super cute!
    Date published: 2019-02-16
    Rated 5 out of 5 by from Love it! This is my fourth hydroflask and I wouldn’t use anything else!
    Date published: 2019-02-10
    Rated 5 out of 5 by from Excellent Bottle I bought this a while ago, and it still looks brand new even though I dropped it a lot. I would recommend this and any product from Hydro Flask to anyone!
    Date published: 2019-02-10
    Rated 5 out of 5 by from I feel great! Since getting my new hydro, I’be been drinking far more water than I was before! I’m hydrated and I feel great!
    Date published: 2019-02-10
    Rated 5 out of 5 by from Best water bottle ever! Bought my hydroflask last month. Live it so much I bought one for my mother in law. It’s light weight and 21oz is the perfect size
    Date published: 2019-02-08
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  • Which bottle best fits into a bicycle water bottle cage holder? Could you please include photos of bicycles with a hydroflask in the bottle cage? It would be so much more helpful than your standard response to this question on the FAQ page.

    Asked by: SLuke
    I use the 21 oz bottle with the flex cap in my bike holder and I believe the 24 oz would also fit since it’s just taller.
    Answered by: Kim99
    Date published: 2018-10-05

    I’m planning to order a hydro and would love to put stickers on it. What is the area of this hydro so I’ll know how many stickers to order? Thanks!

    Asked by: quinlan21
    Quinlan21, Product dimensions can be found on our FAQ page. You can see them here: http://www.hydroflask.com/frequently-asked-questions/
    Answered by: customer servcie
    Date published: 2018-10-03

    Will a straw lid be available for the 21oz HF?

    Asked by: Haughtohio72
    We do not currently manufacture a product that matches your request, but we’ll document your suggestion for future consideration by our Product Development Team.
    Answered by: Hydro Flask Customer Team
    Date published: 2019-01-11

    Why does it say the bottle will keep beverages cold or hot and then say hot beverages not recommended? I find this confusing and misleading. 

    Asked by: Rroy
    The sports cap is what is not recommended with hot beverages. You can use the flask for hot and/or cold beverages, but the sports cap should not be used. You would want the flex cap.
    Answered by: Hydro Flask Customer Team
    Date published: 2018-01-17

    Are your products made inUSA?

    Asked by: Sherrill
    We appreciate your interest in Hydro Flask. Our flasks are manufactured in China, and the caps are manufactured in both China and USA. If you have a specific question or concern, please reply with more detail and we'll be happy to assist you further.
    Answered by: Hydro Flask Customer Team
    Date published: 2018-01-17

    Is the Hydroflask dishwasher safe?

    Asked by: Grandpa
    We do not suggest putting your flask through the dish washer. For cleaning, we recommend hand washing with a bottle brush and mild dish soap.
    Answered by: Hydro Flask Customer Team
    Date published: 2018-01-17

    what is the diameter in inches of the water bottle mouth opening? would it fit a 2.5" lid?

    Asked by: makerra
    Product dimensions can be found on our FAQ page. You can see them here: http://www.hydroflask.com/frequently-asked-questions/
    Answered by: Hydro Flask Customer Team
    Date published: 2018-01-17

    Can you use the sport top with hot liquids?

    Asked by: hockeyplayer
    No, it is not recommended.
    Answered by: Hydro Flask Customer Team
    Date published: 2018-01-17
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