Bottles

18 oz Standard Mouth

$29.95
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Bottles

18 oz Standard Mouth

$29.95

Lifetime

  • Standard Mouth Flex Cap
$29.95

Quantity

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Ice. Water. Go.

Keeping your fluid intake on the upside is easy when you’ve got this portable travel buddy. Whether you’re headed to the gym or a quick jaunt across town, you can easily take your refreshment with you.

18 oz Standard Mouth Lifestyle Image

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

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.

Pro-Grade Stainless Steel

Proprietary Powder Coat

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

Cold Flow System
  • Lifetime Warranty

    Lifetime Warranty

    We stand behind our products.

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

Product Benefits

  • Ideal for pairing with our Standard Mouth Insulated Sport Cap for one-handed refreshment
  • TempShield™ insulation eliminates condensation and keeps beverages cold up to 24 hours or hot up to 12 hours
  • Durable 18/8 Pro-Grade Stainless Steel construction
  • BPA-Free and Phthalate-Free
  • Lifetime Warranty

Size & Dimensions

18 oz
Volume 532 mL
Mouth Diameter 1.91"
Diameter 2.87"
Height 8.7"
Weight 11.3 oz

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

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.

Pro-Grade Stainless Steel

Proprietary Powder Coat

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

Cold Flow System
  • Lifetime Warranty

    Lifetime Warranty

    We stand behind our products.

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

Details & Specs

Product Benefits

  • Ideal for pairing with our Standard Mouth Insulated Sport Cap for one-handed refreshment
  • TempShield™ insulation eliminates condensation and keeps beverages cold up to 24 hours or hot up to 12 hours
  • Durable 18/8 Pro-Grade Stainless Steel construction
  • BPA-Free and Phthalate-Free
  • Lifetime Warranty

Size & Dimensions

18 oz
Volume 532 mL
Mouth Diameter 1.91"
Diameter 2.87"
Height 8.7"
Weight 11.3 oz

Video

Reviews/Q&A

  • Reviews

  • Q & A

  • 18 oz Standard Mouth is rated 4.7 out of 5 by 491.
    Rated 5 out of 5 by from only water bottle i’ll ever need i bought this a month or two ago. it’s pretty great. it’s keeps my water cold for up to like 2 days. it’s expensive for good quality. would buy again
    Date published: 2019-11-09
    Rated 5 out of 5 by from Love it! Awesome product I bought a month ago & so far it’s really great product
    Date published: 2019-11-04
    Rated 5 out of 5 by from Does as intended It keeps my water cold all day and is the perfect size to carry around in my back pack when I’m out. Dents kinda easy but it doesn’t affect performance so who cares
    Date published: 2019-11-04
    Rated 5 out of 5 by from Great for school! I just bought this and the color is so nice and vibrant! It also keeps my water cold all day when in class! Just make sure not to drop it because it dents very easily!
    Date published: 2019-10-28
    Rated 5 out of 5 by from Keeps drink cold and easy to use. Our granddaughter playes Volleyball and need something that wouldn't leak and keep her drink cold . She loves it. Thank You for making such a great product. I would recommend this to all. Very happy to find one that works well for our athlete .
    Date published: 2019-10-21
    Rated 5 out of 5 by from Perfect size This is small but a perfect size to fit in my backpack side pouch.
    Date published: 2019-10-21
    Rated 5 out of 5 by from Frost Hydro Flask 18 oz I love this flask, it works really well keeping my water very cold.
    Date published: 2019-10-21
    Rated 5 out of 5 by from Keeps cool, No sweat This the second flask, the first was a gift the second for my wife, as soon as I started using it I was convinced that my Kleen canteen had to go, Hydro flask keeps liquids cold for long periods of time and it doesn’t sweat like other containers that I’ve tried, my wife loves it as well!
    Date published: 2019-10-14
    Rated 5 out of 5 by from Happy, Happy, Happy! I am extremely pleased with my purchased. I love the color, it’s the perfect size, and even one left in a hot car my water is still nice and cold.
    Date published: 2019-10-14
    Rated 5 out of 5 by from Easy/perfect Keeps water cold all day on golf course and is easy to carry
    Date published: 2019-10-11
    Rated 5 out of 5 by from love it I bought it for my daughter for school and she loves it. it keeps the water cold all day.
    Date published: 2019-10-09
    Rated 5 out of 5 by from Stay Hydrated Looks chic and keeps me hydrated ALWAYS!! Saw a friend with the same one so I copped one myself. I carry it with me literally everywhere and the water is always cold.
    Date published: 2019-10-09
    Rated 5 out of 5 by from Great size for running errands As a Florida resident, I follow the rule never leave home within water! This is the perfect size!
    Date published: 2019-10-07
    Rated 5 out of 5 by from Thanks for the quality I have heard great things so i bought two, one smaller and one larger. i am so glad i did.
    Date published: 2019-10-07
    Rated 5 out of 5 by from awesome My friend loves it. She uses it everyday and is obsesed
    Date published: 2019-10-06
    Rated 5 out of 5 by from Amazing product!! Bought this product and im happy i did, incredible product
    Date published: 2019-10-05
    Rated 5 out of 5 by from I just loved it I got mine a month ago and I haven’t stopped using it since then. I usually drink lots of water everyday but now with my hydro it stays cool, even when I left my bottle in the car! I bring it everywhere now.
    Date published: 2019-09-30
    Rated 5 out of 5 by from GREAT FOR TEENS MY CHILDREN LOVE IT. THEY TAKE IT TO SCHOOL AND KEEPS THEIR WATER COLD ALL DAY!
    Date published: 2019-09-30
    Rated 5 out of 5 by from Stays cool and cute! I bought a hydroflask well over a month ago and it’s still in fantastic quality! The hydroflask is cool and cute! It is great for school or any sports you play.
    Date published: 2019-09-27
    Rated 5 out of 5 by from Amazing! Bought this a month ago and friends still asking if it’s new!!! I love this, it keeps any drink the same temperature!
    Date published: 2019-09-26
    Rated 5 out of 5 by from very good wow this is the best bottle i have ever gotten. This keeps my drinks very cool
    Date published: 2019-09-21
    Rated 5 out of 5 by from Amazing bottle!!!! I bought this bottle about 6 months ago and I’m obsessed with it! I’ve dropped this bottle more times than I can count and honestly it was worth every penny!
    Date published: 2019-09-21
    Rated 5 out of 5 by from When you drink from it the water doesn't come out I brout this 4 months ago it doesn't have a singe dent or scratch
    Date published: 2019-09-21
    Rated 5 out of 5 by from keeps my water cold for hours!! i bought this a couple weeks ago and it kept my water cold for hours. which i loved since i love cold water. and it never seemed to last that long with the other bottles i have tried. so i'm very glad i got one of these.
    Date published: 2019-09-21
    Rated 5 out of 5 by from Amazing Product. I bought this about two months ago, it keeps water cold for hours and is very sturdy. you have to be careful with though as they can dent easily. if they do there is many videos on youtube about how to fix them!
    Date published: 2019-09-21
    Rated 5 out of 5 by from best bottle ever I bought this for college and it keeps everything cold all day! best purchase ever!
    Date published: 2019-09-20
    Rated 5 out of 5 by from Great bottle Works extremely well. Really happy with the results that this product has brought
    Date published: 2019-09-20
    Rated 5 out of 5 by from Amazing! Its a very good bottle to carry around. Very useful.
    Date published: 2019-09-20
    Rated 5 out of 5 by from LOVE IT I bought this water bottle about two weeks ago and I am OBSESSED with it. I legit never go anywhere without it and it keeps my water SO cold even if its a few hours later. I love this water bottle and I already want to buy more!
    Date published: 2019-09-20
    Rated 5 out of 5 by from Great product Use it everyday! It’s great and I’m very happy with the quality.
    Date published: 2019-09-20
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  • Can you put a sport lid on a 18oz?

    Asked by: yeetpayton
    yes you can buy a sport lid with this if you scroll down from the actual product or scroll up from the reviews you will see something called the standard mouth sports lid next to the blue hydroflask
    Answered by: skskvscosksk
    Date published: 2019-10-30

    what are the details on the lifetime warrenty?

    Asked by: raee
    The lifetime warranty covers manufacturers defects.
    Answered by: Consumer Service
    Date published: 2019-06-07

    Can we purchase a 18 oz bottle and have a straw lid as an option?

    Asked by: aed2018
    It would have to be the wide mouth flask. The straw cap will work with any of our wide mouth flasks.
    Answered by: Hydro Flask Customer Team
    Date published: 2019-09-10

    Can the hydro flex bottle fit in bicycle water gage?

    Asked by: Ernie
    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: 2019-02-07

    Can you use a top made for hot beverages on the standard-neck water bottle?

    Asked by: hallie1
    The flip cap would not fit a standard mouth flask. The only two caps would be the sports cap and the standard mouth flex cap.
    Answered by: Hydro Flask Customer Team
    Date published: 2018-01-16

    I don’t see a gripping device or handle for carrying a flask while jogging. Have you thought about designing someway to grip a flask while jogging?

    Asked by: elmesquite
    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: 2019-09-07

    Is the stainless steel finish also sweat-proof like the powder paint finish? Any differences between the 2?

    Asked by: Kat 68
    The only difference is the stainless does not have the powder coat.
    Answered by: Hydro Flask Customer Team
    Date published: 2019-09-12

     Can you put the logo on the bottle or right first and last name on it ?

    Asked by: Sam kana
    At this time we do not offer any engraving services for personal or corporate orders. We suggest reaching out to trophy or engraving shops for a quote!
    Answered by: Hydro Flask Customer Team
    Date published: 2018-12-28

    Can you put carbonated beverages in these?

    Asked by: lucie
    Yes, you can put carbonated beverages in the flasks.
    Answered by: Hydro Flask Customer Team
    Date published: 2018-12-28

    Can you wash these?

    Asked by: Ojoj
    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: 2018-12-28

    Please make a light pink version of this. Thank you!!!!

    Asked by: custumer123
    Product colors are based on consumer feedback. I will forward your suggestion over to our product development team.
    Answered by: Hydro Flask Customer Team
    Date published: 2018-12-28

    Could you guys make a blush pink version of this?

    Asked by: Isabellaros
    Product colors are based on consumer feedback. I will forward your suggestion over to our product development team.
    Answered by: Hydro Flask Customer Team
    Date published: 2018-12-28

    What is the diameter of the standard mouth compared to the wide mouth?

    Asked by: Rachlax24
    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: 2017-07-17

    Can you drink hot liquid straight out of the bottle without burning your lip.

    Asked by: paige8400
    You can, but just be careful that too much would not come out.
    Answered by: Hydro Flask Customer Team
    Date published: 2019-09-07

    Do ice cubes fit into mouth of regular 18 oz size bottle (not wide mouth)?

    Asked by: Sue B
    Ice cubes would fit in the standard sized, but not the narrow mouth.
    Answered by: Hydro Flask Customer Team
    Date published: 2019-03-18

    is the mouth size the same size as the old one? Would it be possible to order the old lid?

    Asked by: stella02
    The only caps we have for the standard mouth are the flex cap and the sports cap. We do still have some of the loop caps available under the warranty. If you need one replaced just fill out the warranty form at www.hydroflask.com/warranty
    Answered by: Hydro Flask Customer Team
    Date published: 2017-06-13

    How tall (inches) in height is the 18 oz standard mouth hydroflask?

    Asked by: CherylM
    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: 2017-06-08

    Does Hydro Flask provide custom branding (imprinting) of a logo onto it's products?

    Asked by: Regarding X
    At this time we do not offer any engraving services for personal or corporate orders. We suggest reaching out to trophy or engraving shops for a quote!
    Answered by: Hydro Flask Customer Team
    Date published: 2019-08-11

    Can hydro flask do the new sage color in the 16oz coffee style?

    Asked by: trav09
    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: 2019-08-11

    I like the idea of a smaller mouth, but why oh why does the lid leave the part where you put your mouth to drink uncovered? The wide mouth lids cover the mouth area... please consider making lids that shield where you put your mouth!

    Asked by: Meg E
    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: 2019-08-11

    I bought this hydroflask from Scheels in Bismarck ND and I washed it in the dishwasher. Some of the paint faded off. Could I get a replacement bottle?

    Asked by: Miranda797
    This would not be covered under the Life Time Warranty. They are hand wash only because the dishwasher can damage the powder coating. The warranty does not cover paint or cosmetic issues.
    Answered by: Hydro Flask Customer Team
    Date published: 2017-07-22

    Dimensions for 18 oz. standard mouth bottle?

    Asked by: Les1
    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: 2017-05-17

    I am lining up some speaking gigs in Chatham, Ontario; Delaware; SW Virginia; and have a slew more in the pipeline. I would like to give Hydro Flasks as my thank you gesture. Is it possible to buy in bulk/at any kind of discount? Great publicity! :)

    Asked by: moxieprof
    Our bulk purchasing program starts at a minimum of 288 flasks. You would need to fill out this form at the following link if that is in your interest. You would receive a follow up from our sales team letting you know if it is approved or denied within 2 business days. The link is https://www.hydroflask.com/new-account-inquiry/
    Answered by: Hydro Flask Customer Team
    Date published: 2017-05-05

    standard mouth vs coffee - both have same function. what is the measurements of each - i would like to compare height and width

    Asked by: donnaramirez
    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: 2017-05-02

    I very like your products and idea . What is the boot of the material? Silica gel ?

    Asked by: liya
    The boots are made out of silicone.
    Answered by: Hydro Flask Customer Team
    Date published: 2017-04-13

    Do you sell the bottom protective cover alone or is it only available with the custom orders?

    Asked by: Roxy
    At this time the boots are not available for individual sale. They are only available if you purchase a My Hydro.
    Answered by: Hydro Flask Customer Team
    Date published: 2017-03-16

    I have been cleaning my hydro by hand, because I'm not sure if it's dishwasher safe. Our hydros dishwasher safe?

    Asked by: meee
    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: 2017-05-07

    Where can I find on your website where the product is manufactured?

    Asked by: lexo
    We appreciate your interest in Hydro Flask. Our flasks are manufactured in China, and the caps are manufactured in both China and USA.
    Answered by: Hydro Flask Customer Team
    Date published: 2017-04-13

    Hello :) The descr. says "keeps cold for 24hrs, hot for 12hrs," however product video says "hot for 6hrs." The lid shown in the video is also different, does lid type affect time for heat? Which lid comes standard with this 18oz? TY!

    Asked by: rel1speed
    The flasks will keep liquids hot for up to the 12 hours and cold for up to 24 hours. The flex cap this one comes with does better insulate because it completely connects to the flask with no openings.
    Answered by: Hydro Flask Customer Team
    Date published: 2017-02-24

    I have a 16oz wide mouth hydro flask and I need the seal that is in the lid. I check at the local store and they told me I had to buy a new lid for about $6.00 and that the seals were not available. I was wondering if it is possible to buy a new seal?

    Asked by: Herm
    We'd be happy to replace your cap for you under our Lifetime Warranty. You can fill out a warranty claim here: (http://www.hydroflask.com/warranty/)
    Answered by: Hydro Flask Customer Team
    Date published: 2017-02-17
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