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
  • TempShieldTM 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.

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
  • TempShieldTM 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 4.4 out of 5 by 16.
    Rated 5 out of 5 by from Amazing The bottle is sleek and realoly pretty and it keeps the contents to true to its temperature.
    Date published: 2018-04-13
    Rated 5 out of 5 by from We love our HydroFlaks!! Me and my wife but have a 21oz standard month with a sports cap. We take these to work with us so we can drink throughout the day. We are in law enforcement and work 12 hour shifts so we have a long day and we also take them to the gym with us. The HydroFlasks keep our water cold for hours!! We couldn't do without our HydroFlasks. We love them!!!
    Date published: 2018-04-01
    Rated 5 out of 5 by from ASTONISHED!! 3 days and still has ice!! This product far exceeds my expectations!!!! I was skeptical that it would truly keep a product cold as long as indicated but I was incredibly wrong! When the Hydro Flask arrived my curiosity wanted to test their claims before I really started regularly using it. I filled the Hydro Flask with ice water the day I got it and I kid you not it still had ice on the third day! I was mind blown! The first two pictures I've provided show day one and the final picture looking directly in was taken on day three after consuming about half of the contents as I couldn't resist a few drinks.
    Date published: 2018-03-27
    Rated 5 out of 5 by from MY WATER STAYED COLD!! I got my Hydro Flask water bottle for christmas from a close friend of mine and thought, “Oh nice another water bottle that will leak and smell after time”. I WAS WRONG!!! This water kept my ice intact for almost two full days!! The next day I poured in some coffee and for the next day there was no coffee taste left over when I poured water in. I am IN LOVE with my Hydro Flask, this is a definite recommend for all ages!!
    Date published: 2018-01-09
    Rated 5 out of 5 by from Amazing!!! I have been looking for a bottle that can keep my water cold for a long time, and this one is absolutely amazing!!
    Date published: 2017-12-26
    Rated 5 out of 5 by from Keeps water cold for a really long time, dosnt scr I bought this only couple days ago and I'm already love with it
    Date published: 2017-12-23
    Rated 5 out of 5 by from Excellent I bought one a week ago, went on a 6 hr hike yesterday, water stayed cold all the way.
    Date published: 2017-08-23
    Rated 5 out of 5 by from been addicted to all of this one been addicted with all your product, good quality, great color selection, highly recommended for friends & family, satisfied with everything been looking for. you can see how happy I am hoping to have free new stuff that I can be proud of to use too
    Date published: 2017-07-20
    Rated 5 out of 5 by from Best insulator ever! My boyfriend recently bought the 21oz hydroflask for me while we went to Coachella (3 day outdoor music festival with scorching temperatures). When I tell you the ice we placed in our hydroflasks we're still intact from morning to practically 3pm I knew this was genius technology. And the water was refreshingly icy as if it came from the Swiss glaciers themselves. Definitely a must have!!!! And after a week later I'm still thank him for it!
    Date published: 2017-04-21
    Rated 5 out of 5 by from I have one Hey wassup I'm a freshman in high school guys and I love my hydro flask I drink a lot of water in the day and this fits in my backpack just perfect keeps my water freezing cold all day long ... I love water and I definitely recommend this product...A+
    Date published: 2017-03-01
    Rated 5 out of 5 by from Most awesome drink container ever" Hubby gave it to me as a gift. Love, Love , Love it!
    Date published: 2016-10-06
    Rated 4 out of 5 by from Good size & great for COLD drinks I got this as a gift from my daughter who loves them. I was reluctant because I'd been using big cups with handles. Well, I like this and use it EVERY day with the sports top. After I dropped it many times over nearly a year it no longer keeps drinks cold so I'm needing a replacement. I'd love to see a few changes: 1) NOT leaking when turned on it's side, 2) listing # ounces somewhere on the base so I don't have to guess when I reorder and don't have a handy way to measure, 3) having a way to hook on a shoulder strap for when I'm juggling several items (that's what led to my dropping it).
    Date published: 2017-03-11
    Rated 4 out of 5 by from Awesome!! It dents very easily but it keeps water very cold!
    Date published: 2017-01-28
    Rated 3 out of 5 by from Great bottle but be careful ordering online It works great keeping warm and cold but mine came dented :(
    Date published: 2018-09-15
    Rated 3 out of 5 by from Great bottle, bad lid I got my water bottle for Christmas. I have wanted it for a long time, and it was well worth the wait! The bottle keeps my water and ice cubes cold for hours, even over night. I haven't tried putting hot liquid in it so I can't comment on that, but this is excellent for keeping beverages cold! However, DO NOT get the sports cap! It leaks everywhere, even when closed! This is because when the water bottle is inverted, water pours out of the air hole, which is what allows for a smooth drinking experience. However, when you aren't drinking it and it turns upside down, water comes straight out of the air hole. I have ruined many things in my purse on multiple occasions. I love caps that you can drink directly from, but because this one spills so much I have had to switch back to the screw-on cap.
    Date published: 2017-04-06
    Rated 1 out of 5 by from 24 hrs cold...... Wrong information no accurate ☹️ I have had my Hydro flask 21 ounce for a while now and it says the information it last 24 hours cold. That information does not hold true to what it says. Very disappointed.
    Date published: 2018-05-13
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  • 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: 2018-01-18

    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

    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
    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

    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

    do you have a straw lid that fits this 21 ounce sized bottle?  It says only sport top and screw off fit but we'd like the straw for my daughter for school.

    Asked by: Annamaria
    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: 2017-12-18
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