Buy new:
To see product details, add this item to your cart.
FREE Returns
Ships from: Amazon.com
Sold by: Amazon.com

Hydro Flask Stainless Steel Standard Mouth Water Bottle with Flex Cap and Double-Wall Vacuum Insulation

Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Water Bottles by Hydro Flask
To see product details, add this item to your cart. You can always remove it later.
FREE Returns
Available at a lower price from other sellers that may not offer free Prime shipping.

Purchase options and add-ons

Brand Hydro Flask
Capacity 21 Fluid Ounces
Color Black
Recommended Uses For Product Water
Special Feature Cold 24 Hours, Leakproof, Dishwasher Safe

About this item

  • 24 hours cold, 12 hours hot
  • TempShield️ double-wall vacuum insulation
  • Leakproof when closed
  • Pure taste, no flavor transfer
  • Durable stainless steel
  • BPA-Free
  • Dishwasher safe

Frequently bought together

Hydro Flask Stainless Steel Standard Mouth Water Bottle with Flex Cap and Double-Wall Vacuum Insulation
$25.99
Get it as soon as Wednesday, Jul 24
In Stock
Ships from and sold by Amazon.com.
+
Hydro Flask Standard Mouth Lids- Accessory for Standard Mouth Water Bottle
$14.95
Get it as soon as Wednesday, Jul 24
In Stock
Ships from and sold by Amazon.com.
+
RRegeny Straw Lid fits Hydro Flask Standard Mouth, 21 24 oz, Sports Flex Cap Water Bottle Accessories Replacement Top
$8.86
Get it as soon as Thursday, Jul 25
In Stock
Sold by Ms. Pan and ships from Amazon Fulfillment.
Total price:
To see our price, add these items to your cart.
Details
Added to Cart
These items are shipped from and sold by different sellers.
Show details Hide details
Choose items to buy together.

Similar items that may deliver to you quickly

Page 1 of 1 Start overPage 1 of 1
Previous page
  1. Amazon Basics Stainless Steel Insulated Water Bottle With Spout Lid, 30 ounce, Large Size, Gray
    4.4 out of 5 stars 3,238
    Amazon's Choice
    in Insulated Bottles
    $17.93 ($0.60/Ounce)
    Get it as soon as Wednesday, Jul 24
    FREE Shipping on orders over $35 shipped by Amazon
  2. HYDRO FLASK - Water Bottle 621 ml (21 oz) with Flex Straw Cap - Vacuum Insulated Stainless Steel Reusable Water Bottle - Leak
  3. Hydro Flask 21 oz Standard Mouth with Flex Cap Stainless Steel Reusable Water Bottle Cactus - Vacuum Insulated, Dishwasher Sa
  4. CIVAGO 32 oz Insulated Water Bottle With Straw, Stainless Steel Sports Water Cup Flask with 3 Lids (Straw, Spout and Handle L
  5. Hydro Flask Standard Mouth Bottle with Flex Cap
  6. Procotin 24oz Standard Mouth Stainless Steel Water Bottle with Flex Cap and Double-Wall Vacuum Insulation - Keeps Beverages C
Next page

From the brand

From the manufacturer

Standard Mouth Flex Cap Water Bottle Hydro Flask
Standard Mouth Flex Cap Water Bottle Hydro Flask
Standard Mouth Flex Cap Water Bottle Hydro Flask
tumbler, tumbler with straw

Product information

Technical Details

Additional Information

Feedback

Hydro Flask Stainless Steel Standard Mouth Water Bottle with Flex Cap and Double-Wall Vacuum Insulation

Found a lower price? Let us know. Although we can't match every price reported, we'll use your feedback to ensure that our prices remain competitive.

Where did you see a lower price?
Date of the price (MM/DD/YYYY) *:
/
/
/
/
Please sign in to provide feedback.

Looking for specific info?

Customer reviews

4.8 out of 5 stars
4.8 out of 5
23,967 global ratings

Customers say

Customers like the coldness, portability, performance, and size of thermos. For example, they mention it keeps water cold for up to 24 hours and hot for up 12 hours, it's the perfect size to carry and fits in car cup holders. They're also satisfied with leakage, color, and quality. Opinions are mixed on value.

AI-generated from the text of customer reviews

Select to learn more
QualityColdnessSizeColorLeakagePerformancePortabilityValue
800 customers mention "Quality"591 positive209 negative

Customers like the quality of thermos. They mention it has unparalleled insulation, durable construction, and thoughtful design. They also appreciate its reliability and durability. Some say that it lasts forever and keeps ice solid all day.

"...It did not leak and I had no problems with the lid. Seems very durable. Definitely recommend !" Read more

"...has become my go-to hydration companion, combining functionality, durability, and temperature retention for a superior drinking experience...." Read more

"...-coated exterior provides a solid grip and adds to the bottle’s overall durability. It also fits perfectly into the cup holder on my BMW X3...." Read more

"...It hasn't peeled so far. The other bottles, the paint peels." Read more

705 customers mention "Coldness"620 positive85 negative

Customers like the coldness of thermos. They say the double-wall vacuum insulation keeps drinks cold for up to 24 hours and hot for up 12 hours. The bottle is light and resistant, and is the perfect size for keeping coffee and tea hot. It also holds up well during the summer, keeping water cold and delicious. Customers also mention that the bottle has unparalleled insulation, durable construction, and thoughtful design.

"...It is lightweight, easy to clean, very sanitary, great color, keeps my cold water cold and has a good size mouth to drink from...." Read more

"...The Hydro Flask kept my water refreshingly cold despite the hot weather, and the Flex Cap made it easy to carry while keeping the sand out." Read more

"...The double-wall vacuum insulation keeps drinks cold for up to 24 hours and hot for up to 12 hours...." Read more

"...Its unparalleled insulation, durable construction, and thoughtful design make it a standout choice for those who prioritize both form and function..." Read more

285 customers mention "Size"251 positive34 negative

Customers like the size of thermos. They say it's the perfect size to carry, it fits in cup holders, and it'll keep water cold all day. Customers also mention that the standard mouth size is just right for sipping or pouring without any spills. The bottle is slim enough to hold comfortably and is relatively light weight for the size.

"I didn’t expect to like this travel mug so much. It is lightweight, easy to clean, very sanitary, great color, keeps my cold water cold and has a..." Read more

"...The standard mouth size is perfect for sipping, and it accommodates most ice cubes for those who prefer their beverages extra cold...." Read more

"...It also fits perfectly into the cup holder on my BMW X3. This is my second time around with this bottle...." Read more

"...Refilling is a breeze, thanks to the wide mouth that accommodates ice cubes and facilitates easy cleaning...." Read more

251 customers mention "Color"242 positive9 negative

Customers are satisfied with the color of thermos. They mention it's a beautiful color, cute for sports and gym activities, and has a cute little logo printed on it. The product is durable, easy to clean, and comes in a variety of colors and sizes. It is also BPA free and has an insulation capabilities.

"...It is lightweight, easy to clean, very sanitary, great color, keeps my cold water cold and has a good size mouth to drink from...." Read more

"...Sometimes the brand products matter.The color is also very pleasing. It hasn't peeled so far. The other bottles, the paint peels." Read more

"...The Hydro Flask's sleek design and vibrant color options add a touch of style to my daily hydration routine...." Read more

"I love the size and shape of this water bottle. There are so many colors to choose from that it is hard to make a decision...." Read more

150 customers mention "Leakage"125 positive25 negative

Customers like the leakage of the thermos. They say the secure seal of the cap prevents leaks and the straw does not drip. Some customers also mention that the bottle does not spill.

"...It did not leak and I had no problems with the lid. Seems very durable. Definitely recommend !" Read more

"...The secure seal of the cap prevents leaks, giving me confidence to toss it into a bag without worrying about spills...." Read more

"...the Flex Cap adds convenience, providing a reliable seal to prevent leaks and spills...." Read more

"...We wanted something sturdy, non-toxic, and leakproof. They keep water cold for a long time. We even got this particular color at a great price!..." Read more

130 customers mention "Performance"122 positive8 negative

Customers are satisfied with the performance of thermos. They mention that it works well, serves its purpose well, and keeps their coffee hot all day. Some say that the product itself is fine but it just makes it look messy.

"...I rate this a 5 star because I've found it to be very useful." Read more

"...It might be okay if it were only half full.In summary, it’s decent, but I wouldn’t recommend it unless you are also going to purchase a..." Read more

"Works as it is supposed too." Read more

"Works great." Read more

125 customers mention "Portability"112 positive13 negative

Customers like the portability of thermos. For example, they mention it has a handle on the cap, so they can carry it around easily. They also appreciate the strap for carrying, and say it's perfect for traveling or taking with them since it'd not be too big or too heavy. Customers also mention the flex cap is awesome to carry around and the bottle is robust. They say it fits in a golf cart cup holder and keeps water cold for 4 hours.

"...The flexible strap makes it easy to carry or attach to a backpack, providing a hands-free option during hikes or workouts...." Read more

"...The Flex Cap is incredibly convenient and makes it easy to carry around...." Read more

"...I love the appearance of it plus the handle that makes it easy to carry!..." Read more

"...This size fits easily in my car cup holder and in the side pocket of my carry on airplane bag...." Read more

151 customers mention "Value"89 positive62 negative

Customers are mixed about the value of thermos. Some mention it works well and is a good value, while others say it's a bit expensive and not worth it.

"...We even got this particular color at a great price! We are very happy with this purchase!" Read more

"Nothing special but adequate. Could use an added silicon base or other cap options to deliver more value compared to similar options...." Read more

"Good product for price" Read more

"I like it . It is durable yet expensive" Read more

Fits under the water/ice dispenser of my refrigerator. Ice stays ice all day.
5 out of 5 stars
Fits under the water/ice dispenser of my refrigerator. Ice stays ice all day.
I love the size and shape of this water bottle. There are so many colors to choose from that it is hard to make a decision. The double-wall vacuum insulation keeps drinks cold for up to 24 hours and hot for up to 12 hours. The powder-coated exterior provides a solid grip and adds to the bottle’s overall durability. It also fits perfectly into the cup holder on my BMW X3. This is my second time around with this bottle. The first one still works but I have dropped it so many times that it wobbles a bit. A new one was in order! Do yourself a favor, and get several!
Hide
Thank you for your feedback
Sorry, there was an error
Sorry we couldn't load the review

Top reviews from the United States

Susan
5.0 out of 5 stars Love it…
Reviewed in the United States on July 14, 2024
Style: 18 OzColor: StoneVerified Purchase
I didn’t expect to like this travel mug so much. It is lightweight, easy to clean, very sanitary, great color, keeps my cold water cold and has a good size mouth to drink from. It did not leak and I had no problems with the lid. Seems very durable. Definitely recommend !
One person found this helpful
Helpful
 Report
An P
5.0 out of 5 stars Great water bottle
Reviewed in the United States on June 28, 2024
Style: 21 OzColor: DewVerified Purchase
I would recommend this water bottle as it keeps water cool. The earlier water bottles would not keep the water cold. On hot days, the water would get warm and the bottle would start stinking. Then it becomes very hard to remove the smell.

I was skeptical on hydro flask and thought it was a hype. But now after buying this, I am hooked. Sometimes the brand products matter.

The color is also very pleasing. It hasn't peeled so far. The other bottles, the paint peels.
One person found this helpful
Helpful
 Report
Max Prosperity
5.0 out of 5 stars perfect fit
Reviewed in the United States on January 10, 2024
Style: 18 OzColor: StoneVerified Purchase
The Hydro Flask Stainless Steel Standard Mouth Water Bottle with Flex Cap and Double-Wall technology has become my go-to hydration companion, combining functionality, durability, and temperature retention for a superior drinking experience.

The double-wall insulation is a standout feature, keeping beverages cold for up to 24 hours or hot for up to 12 hours. This capability has proven invaluable, especially during outdoor activities or long workdays, ensuring that my drinks stay at the desired temperature for extended periods.

The Flex Cap adds to the convenience with its easy-to-use design. The flexible strap makes it easy to carry or attach to a backpack, providing a hands-free option during hikes or workouts. The secure seal of the cap prevents leaks, giving me confidence to toss it into a bag without worrying about spills.

The standard mouth size is perfect for sipping, and it accommodates most ice cubes for those who prefer their beverages extra cold. The stainless steel construction is durable and resistant to flavor transfer, ensuring that my drinks taste fresh with every sip.

The Hydro Flask's sleek design and vibrant color options add a touch of style to my daily hydration routine. The powder-coated finish not only looks great but also provides a comfortable and slip-resistant grip.

One standout experience was during a day at the beach. The Hydro Flask kept my water refreshingly cold despite the hot weather, and the Flex Cap made it easy to carry while keeping the sand out.
19 people found this helpful
Helpful
 Report
V Leicester
5.0 out of 5 stars Fits under the water/ice dispenser of my refrigerator. Ice stays ice all day.
Reviewed in the United States on June 21, 2024
Style: 21 OzColor: LupineVerified Purchase
I love the size and shape of this water bottle. There are so many colors to choose from that it is hard to make a decision. The double-wall vacuum insulation keeps drinks cold for up to 24 hours and hot for up to 12 hours. The powder-coated exterior provides a solid grip and adds to the bottle’s overall durability. It also fits perfectly into the cup holder on my BMW X3. This is my second time around with this bottle. The first one still works but I have dropped it so many times that it wobbles a bit. A new one was in order! Do yourself a favor, and get several!
Customer image
V Leicester
5.0 out of 5 stars Fits under the water/ice dispenser of my refrigerator. Ice stays ice all day.
Reviewed in the United States on June 21, 2024
I love the size and shape of this water bottle. There are so many colors to choose from that it is hard to make a decision. The double-wall vacuum insulation keeps drinks cold for up to 24 hours and hot for up to 12 hours. The powder-coated exterior provides a solid grip and adds to the bottle’s overall durability. It also fits perfectly into the cup holder on my BMW X3. This is my second time around with this bottle. The first one still works but I have dropped it so many times that it wobbles a bit. A new one was in order! Do yourself a favor, and get several!
Images in this review
Customer image Customer image
Customer imageCustomer image
8 people found this helpful
Helpful
 Report
LadyRN
5.0 out of 5 stars Hydro Flask Standard Mouth Water Bottle: Unrivaled Insulation and Durability
Reviewed in the United States on December 11, 2023
Style: 18 OzColor: StoneVerified Purchase
The Hydro Flask Stainless Steel Standard Mouth Water Bottle has earned its reputation as a top-tier hydration companion, setting a high standard for both performance and design. This water bottle has become an indispensable part of my daily routine, accompanying me everywhere from the gym to outdoor adventures.

The double-wall vacuum insulation is a game-changer, maintaining the temperature of my beverages like no other. Whether I'm sipping on a refreshing cold drink during a hot summer day or enjoying a warm beverage in the chill of winter, the Hydro Flask keeps it at the desired temperature for an extended period.

The durable stainless steel construction is both robust and resilient, withstanding the inevitable bumps and drops of daily life. The scratch-resistant exterior maintains its sleek appearance even after prolonged use, showcasing the Hydro Flask's commitment to quality.

The Standard Mouth design strikes a perfect balance between a wide and narrow opening. It's ideal for easy sipping and pouring, and the Flex Cap adds convenience, providing a reliable seal to prevent leaks and spills. The cap's flexible strap makes carrying the bottle a breeze, whether in hand or attached to a backpack.

The variety of vibrant colors and sizes allows for personalization, adding a touch of style to functional excellence. The powder-coated finish not only enhances the bottle's aesthetic appeal but also provides a secure grip.

Refilling is a breeze, thanks to the wide mouth that accommodates ice cubes and facilitates easy cleaning. The compatibility with Hydro Flask accessories, such as the straw lid, further enhances the bottle's versatility.

In conclusion, the Hydro Flask Stainless Steel Standard Mouth Water Bottle sets the bar high for hydration solutions. Its unparalleled insulation, durable construction, and thoughtful design make it a standout choice for those who prioritize both form and function in their water bottle. Highly recommended for anyone seeking a reliable and stylish companion for staying hydrated on the go.
18 people found this helpful
Helpful
 Report
Amal Sheth
4.0 out of 5 stars Great product, couple caveats.
Reviewed in the United States on June 28, 2024
Style: 24 OzColor: WhiteVerified Purchase
Keeps drinks cool/warm for hours on end, looks good and feels virtually indestructible.

With the narrow opening, cleaning it is pretty tough unless you have a brush that is capable, also don't drop your bottle in the office or everyone in your zip code will hear it.
5 people found this helpful
Helpful
 Report
Chris A.
5.0 out of 5 stars The Best Water Bottle I've Ever Owned
Reviewed in the United States on July 9, 2024
Style: 24 OzColor: BlackVerified Purchase
I've been using the Hydro Flask Stainless Steel Standard Mouth Water Bottle with Flex Cap, and I am absolutely thrilled with it. The double-wall vacuum insulation keeps my drinks cold for hours, even in hot weather. The Flex Cap is incredibly convenient and makes it easy to carry around. The stainless steel construction is both durable and stylish, and I appreciate that it doesn't retain any flavors from previous drinks. Whether I'm at the gym, hiking, or just on the go, this water bottle is the perfect companion. Highly recommended for anyone looking for a reliable and high-quality water bottle!
Helpful
 Report
MM
5.0 out of 5 stars great water bottles!
Reviewed in the United States on July 6, 2024
Style: 24 OzColor: DewVerified Purchase
These are great water bottles! We wanted something sturdy, non-toxic, and leakproof. They keep water cold for a long time. We even got this particular color at a great price! We are very happy with this purchase!
Helpful
 Report

Top reviews from other countries

Translate all reviews to English
Joanne
4.0 out of 5 stars Water bottle
Reviewed in Canada on July 13, 2024
Style: 24 OzColor: AgaveVerified Purchase
Really keeps liquids cold for a long time.
Love it.
Report
rich
5.0 out of 5 stars Top quality
Reviewed in Canada on July 12, 2024
Verified Purchase
You can’t go wrong with this brand. Will last for years, worthwhile investment.
Report
Niza
5.0 out of 5 stars Excelente !!!
Reviewed in Mexico on July 2, 2024
Style: 21 OzColor: DewVerified Purchase
Es una inversión que vale completamente la pena. La compré justo antes de la onda de calor y mantenía mi agua bien fría por varias horas. Ningún problema de que se regara el líquido, además de que la boquilla es lo suficientemente amplia como para que le quepan hielos. Me encanta
Report
Alexis Jesus Gonzalez Biffano
5.0 out of 5 stars La botella perfecta
Reviewed in Mexico on June 4, 2024
Style: 24 OzColor: AgaveVerified Purchase
Botella ideal, altísima calidad.
Es una compra para toda la vida, yo amo esta marca.
Report
Ashley
5.0 out of 5 stars Cool colour and good size
Reviewed in Canada on June 1, 2024
Verified Purchase
Gave as a gift and my friend now uses it as her main water bottle (she loves her water lol). Unique colour and she likes the strap part for attaching to bags.
Report