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Hydro Flask

Hydro Flask Standard Mouth Bottle with Flex Cap

    • Based on 25,520 reviews
Condition: New
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$64.95 Why this price?

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This item is eligible for return within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

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Availability: Only 1 left in stock, order soon!
Fulfilled by QCV Sales
Arrives May 28 – Jun 5
Order within 1 hour and 11 minutes
Available payment plans shown during checkout

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Color: Cobalt


Style: 21 Oz


Pattern Name: Bottle


Features

  • TempShield insulation keeps beverages cold up to 24 hours and hot up to 12 hours
  • Made with 18/8 pro-grade stainless steel to ensure durability, pure taste and no flavor transfer
  • Flex Cap is leakproof when closed, to transport without worry
  • Flex Strap is easy to transport and comfortable to carry
  • Honeycomb Insulated cap for maximum temperature retention
  • Color Last powder coat is dishwasher safe, keeping your bottle slip-free and colorful
  • Fits most backcountry water filters
  • Cup holder compatible
  • BPA-Free & Toxin-Free

Brand: ‎Hydro Flask


Capacity: ‎21 Fluid Ounces


Color: ‎Cobalt


Product Dimensions: ‎2.85"W x 11.1"H


Model Name: ‎21 oz. Standard Mouth


Item Weight: ‎0.05 Pounds


Material: ‎Stainless Steel


Number of Items: ‎1


Pattern: ‎Bottle


Included Components: ‎Hydro Flask Bottle


Product Care Instructions: ‎Hand Wash Only


Cap Type: ‎Flex Cap


Item Package Dimensions L x W x H: ‎10.08 x 3.23 x 3.15 inches


Package Weight: ‎0.4 Kilograms


Item Dimensions LxWxH: ‎2.87 x 2.87 x 9.4 inches


Brand Name: ‎Hydro Flask


Warranty Description: ‎LIFETIME


Suggested Users: ‎girls


Manufacturer: ‎Hydro Flask


Part Number: ‎S21SX407


Model Year: ‎2020


Style: ‎21 Oz


Size: ‎21 oz


Sport Type: ‎Multi-Sport


Date First Available: June 28, 2016


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 28 – Jun 5

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
  • PayTomorrow Financing
  • Apple Pay Later
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great regular-use water bottle!
Color: Cobalt Style: 21 Oz Pattern Name: Bottle
Review Image by Nash
This product was perfect for my purposes - I wanted a skinny water bottle with insulation. I was between this and a new swell water bottle I had in the past, but opted for this one since it had a handle. Over the last few months, it had proved to be leakproof, easy to clean, and fairly well insulating (I think swell insulation is a little better, but it’s very comparable). I decided to buy the straw cap and I have been drinking so much water with it, so I wish I bought that one first instead of the plan cap. I’d definitely recommend this for the handle and options for the straw cap. ... show more
Reviewed in the United States on November 30, 2022 by Nash
    • Love at first sip!
Color: Goji Style: 24 Oz Pattern Name: Bottle
Review Image by Jennifer Lugovaya
I have problems getting my fluids in. I’d drink Red Bull all day if possible. However, I know hydration is important. I need all the motivation I can get. I bought this as a gift to me from me :) I’m super in love! I added some ice and mineral water to the bottle. It’s so cold I have ice crystals in my drink!!! I love that! But it’s hard to keep the drink at the right temperature for them to form. Fingers crossed this will help me get my water in. Will update in a month or so. ... show more
Reviewed in the United States on December 3, 2022 by Jennifer Lugovaya
    • Such a good quality & Leakproof bottle
Color: Stone Style: 18 Oz Pattern Name: Bottle
This water bottle is so efficient for work, I purposely wanted a slimmer bottle that I can carry around w/ no trouble and refill throughout the day. This bottle, an 18oz, is so convenient for that and transportable. Though it’s a great bottle, the material makes it hard sometimes to grab because there’s not much grip, so I went ahead and purchased the strap and bottle boot. ... show more
Reviewed in the United States on December 6, 2022 by Cassandra
    • Keeps hot things hot, and cold things cold
Color: Rain Style: 21 Oz Pattern Name: Bottle
Functions almost perfectly, even after owning for a while. After months and months of use and going through the dishwater, the top cap is finally losing some of its seal so it does leak slowly if knocked over, but that can be easily remedied by a new cap. Bottle itself is very sturdy and could be used as a self defense weapon when full. Multipurpose :) ... show more
Reviewed in the United States on November 27, 2022 by Corrine Schneider
    • Good
Color: Rain Style: 24 Oz Pattern Name: Bottle
My daughter’s choice for school. Simple. Easy to clean. Leak proof. Easy to hold. We however received 3 extra ones though we ordered only 1 and paid for 1. Let us know if you want us to return the other 3.
Reviewed in the United States on December 3, 2022 by Tina Kay
    • Love this water bottle
Color: Rain Style: 24 Oz Pattern Name: Bottle
I love this Hydro Flask!!!! It fits in the cup holder in my car so much better than my other water bottles and it keeps the water cold for so long!!!!!! Definitely recommend!!!!
Reviewed in the United States on December 6, 2022 by Melissa S. Nelson
    • Great replacement for an old Nalgene
Color: Clementine Style: 24 Oz Pattern Name: Bottle
Keeps things cold and has a nice heft to it. I did buy a ShunDee Straw Lid shortly after because unscrewing the top constantly got to be a pain, that top is also leak proof so I highly recommend it.
Reviewed in the United States on November 30, 2022 by TheLifeEnigma
    • So Pretty! I had to get another one!
Color: Clementine Style: 24 Oz Pattern Name: Bottle
Review Image by Micaela Stevens
Review Image by Micaela Stevens
Review Image by Micaela Stevens
Review Image by Micaela Stevens
Review Image by Micaela Stevens
Review Image by Micaela Stevens
I love this bottle not only because it’s great at keeping drinks cold or hot, but the design is SO smooth! The color? Oh my gosh, it’s so pretty! Definitely recommend. No damage at all from delivery, looks spotless.// I like this so much I had to get another one! Again, no damage at all from delivery, absolutely spotless. I like the vibrant color selection they offer. ... show more
Reviewed in the United States on November 21, 2022 by Micaela Stevens

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