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Hydro Flask

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

  • Based on 23,649 reviews
Condition: New
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$23.73 Why this price?
4th of July Sale · 21% off was $29.95

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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Jul 8
Order within 9 hours and 4 minutes
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Style: 18 Oz


Color: Black


Features

  • Stainless steel
  • Imported
  • 24 hours cold, 12 hours hot
  • TempShield double-wall vacuum insulation
  • Leakproof when closed
  • Pure taste, no flavor transfer
  • Durable stainless steel
  • BPA-Free
  • Dishwasher safe
  • Not for use on a stove, in a microwave or freezer
  • Keep hot liquids out of the reach of children
  • water bottle, leakproof, insulated, 24 hours cold, 12 hours hot, dishwasher safe, 18 oz, cupholder compatible

Brand: Hydro Flask


Capacity: 18 Fluid Ounces


Color: Black


Recommended Uses For Product: Water


Special Feature: Straw, dishwasher safe, double wall, leak-proof, insulated, leak-proof


Brand: ‎Hydro Flask


Capacity: ‎18 Fluid Ounces


Color: ‎Black


Recommended Uses For Product: ‎Water


Special Feature: ‎Straw, dishwasher safe, double wall, leak-proof, insulated, leak-proof


Age Range (Description): ‎Adult


Product Dimensions: ‎2.85"W x 10.3"H


Model Name: ‎21 oz Standard Mouth


Item Weight: ‎11.3 Ounces


Theme: ‎Adventure


Material: ‎Stainless Steel


Number of Items: ‎1


Pattern: ‎Bottle


Included Components: ‎bottle, lid


Product Care Instructions: ‎Dishwasher safe


Base Diameter: ‎2.85 Inches


Cap Type: ‎Flex Cap


With Lid: ‎Yes


Is Dishwasher Safe: ‎Yes


UPC: ‎810497025574


Manufacturer: ‎Hydro Flask


Global Trade Identification Number: ‎74


Item Package Dimensions L x W x H: ‎9.29 x 3.23 x 3.19 inches


Package Weight: ‎0.37 Kilograms


Item Dimensions LxWxH: ‎2.85 x 2.85 x 10.3 inches


Brand Name: ‎Hydro Flask


Warranty Description: ‎LIFETIME


Suggested Users: ‎mens


Part Number: ‎S18SX001


Model Year: ‎2020


Style: ‎18 Oz


Size: ‎18 Ounces


Sport Type: ‎Exercise & Fitness


Date First Available: March 31, 2013


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jul 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Favorite water bottle.
Style: 21 Oz Color: Lupine Purple
Review Image by Maria Maria
Easy to carry everywhere ( work, home, gym, on the go ). Love the color and how it keeps the water cold after hours of adding ice. I can’t drink water that is room temperature, even in the cold I have to add ice. Does not leak and I love the big opening. I’m not a fan of water bottles with straws or sip straws or other openings where barely any water comes out or you have to suck on it for the water to come out. I think this opening helps me drink a lot more water. And I like to refill it more than my 32oz, but it has been helping me a lot with my water intake. It is easy to wash. I also take it with me to the gym and fits in every cup holder that the machines have for your bottle. With my 32oz I have gotten some of them stuck in the cup holder or with 64oz I have to leave it right next to the machine. But with this one it is easy to take a quick sip or long sip. It is easy to open and close. I just bought another one in the other shade of purple because I am obsessed with it. Definitely a perfect replacement for your water bottles ( lost 2, and broke 1 ) and over other good brands this is so far my favorite. Highly recommend it, worth the price! ... show more
Reviewed in the United States on November 29, 2024 by Maria Maria
    • Better than most bottles
Style: 24 Oz Color: Stone Gray
As someone who’s always on the go, my Hydro Flask has become an essential part of my daily routine. The insulation is no joke—it keeps my water ice-cold during long training sessions and my coffee piping hot when I’m heading to early morning workouts. What really stands out to me is how durable it is; I’ve dropped it more times than I can count, and it barely has a scratch. The wide mouth design makes it easy to fill with ice or clean after a long day, and the sleek design fits perfectly in my gym bag or car cup holder. I also love how it doesn’t sweat, no matter how cold the contents are, which is a huge plus when you’re carrying it around all day. For athletes, travelers, or anyone who values convenience and performance, the Hydro Flask is worth every penny. It’s not just a water bottle—it’s an investment in staying hydrated and fueled no matter where life takes you ... show more
Reviewed in the United States on November 20, 2024 by Skylar Santacroce
    • Keeps Drinks Cool, Great for Hiking & Traveling
Style: 18 Oz Color: Black
I recently bought this for a trip to the Dakotas and love it! Was perfect for traveling, hiking, and visiting national parks. It's a good size that fits in cup holders and backpacks, but not too small. I really like the cap, very secure and tight. No issues with water leaking from the top. The double wall kept my water really cold. My Yeti cup works slightly better for keeping ice from melting, but this is more cost effective and has the better lid for sealing in the drink. Great hydro flask! ... show more
Reviewed in the United States on August 25, 2024 by Haley
    • Functional, dependable and looks great
Style: 21 Oz Color: Indigo Blue
I had a 24oz bottle that was great but a little too tall for my work bag. I just bought same but 21oz which is perfect size, fits nicely in my bag. It is well made, keep liquid cool for hours and looks sharp.
Reviewed in the United States on January 30, 2025 by Josh rose
    • Is a Pricey Water Bottle Really Worth It? Hydro Flask Says 'Heck Yes!
Style: 24 Oz Color: Black
In the endless ocean of water bottles, why splurge on a Hydro Flask? Because it’s actually worth it. If you’re finally ready to level up from that freebie bottle from the dentist, let me tell you—this is the ultimate hydration vessel. After a few months with my Hydro Flask, two things stand out: durability and ice-cold water. I’ve dropped this bottle from heights that would leave lesser bottles in pieces, and it just shrugs it off, looking as cool as ever. And speaking of cool—this thing keeps water cold even after an hour of hot yoga, which is practically a superpower. Plus, let’s face it, Hydro Flasks come with a certain “I’m hydrated and I know it” vibe. So, if you’re waffling over spending a little extra on a water bottle, just know I did, and I’m now sipping ice-cold water like a boss. ... show more
Reviewed in the United States on November 7, 2024 by Josh Kampmann
    • Beautiful design, great color, keeps drink cool, beware of shipping damages
Style: 24 Oz Color: Stone Gray
I ordered 2 bottles in same color. First one arrived nicely but second one arrived dented so I had to return it. The following review is for the first bottle which arrived in good condition. I would give 5 starts but considering the second purchase, I give 4 stars since it was expensive but damaged. Gladly I could return it for free thanks to Amazon. I love this water bottle for its design and quality. Other bottles look super clunky and look like they are designed to be taken on an expedition though the woods. I use this every day for school and I love it. One drawback however is that the 24oz is not enough for me. I didn’t want to buy the 32oz version since it is very large, I went for the 24oz because it is slim and tall and fits in my bag. I wish they had a slim version of 32 oz one. Regardless, I am able to get through 1/2 of my day on 24oz then I have to refill a few times. Otherwise I love this bottle and can see it lasting me a very long time. One other thing to note is that it seems susceptible to dings and scratches, especially on darker colors. I would recommend buying the hydro flask bottle boot for protection and noise reduction when setting down. ... show more
Reviewed in the United States on August 29, 2023 by Arman Bekzatyan
    • The best bottle I ever had!
Style: 21 Oz Color: Stone Gray
The bottle closes so easily and stays clean over time! Its isolating properties are outstanding. I would never go for another brand after tying Hydro Flask.
Reviewed in the United States on February 11, 2025 by Cliente Amazon
    • Sturdy Waterbottle
Style: 24 Oz Color: Fir Green
The Hydro Flask is a must have for anyone who prioritizes hydration, functionality, and style. While the price might deter budget conscious buyers, its durability and performance make it a worthwhile investment. Whether you're hitting the trails, attending classes, or commuting to work, the Hydro Flask ensures your drink stays just the way you like it. ... show more
Reviewed in the United States on January 13, 2025 by Max Lindelof

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