Coldest 21 oz Bottle

Stealth Black / 21oz
4.3
Rated 4.3 out of 5 stars
3,873 Reviews
$22 $32

Color
Size

Built for Athletes and High Performers looking for the best water bottle. We believe in creating a water bottle that will last you a very long time, to be your last bottle, keeping your water the Coldest. We’ve built a bottle that is leak-free, fits in 99% of cup holders, and is a champion of water bottles.

The Original COLDEST bottle. The 21oz Bottle fits 99% of cupholders and is the on-the-go water bottle of choice for many.

Coldest Bottles are the most featured packed, innovative bottles on the market. Built to stay Cold 36+ hours, and HOT 13+ hours. Extensively tested against 40+ leading brands in 24 hour and 48 hour tests. Whether your going to the gym for your next workout, or going on your next adventure the coldest bottle is your go to.

Leakproof • 36+hrs Cold • 13+hrs Hot • Triple Insulated • Stainless Steel • Coldest Insulated Lids • 150,000+ Reviews

Product Dimensions: 3.3"x3.2"x10.8"

Weight: 1 lb

Triple Insulated Base

Double Lid Technology

Coldest Bottles, Dog Bowls, Ice Packs Happiness Guarantee:

Don't love what you bought? We're happy to accept returns with a valid order #. We offer the COLDEST Happiness Guarantee. Return or exchange your COLDEST product at anytime for a full refund*.
*Return shipping is not included.

Lifetime Warranty over manufacturer defects on all bottles

WHY COLDEST?

We designed COLDEST to be your last bottle.

Stays COLDER, Longer

Stays COLD for 36+ to 100+ Hours. Our mission is to be COLDEST. We continuously engineer & test against 40+ competitor brands.

Insanely Engineered

Founded by a team of engineers, we over engineer everything.

Floats in Pools

We invented the COLDEST bottle on the market. 36+ Hours Cold, 13+ Hours Hot.

Your Last Bottle

Every COLDEST bottle is designed to last a lifetime, Free Returns, Forever.

100% Leak Proof

Zero-Leak is the mission to develope leak-free products.

100,000+ 5 Star Global Reviews

Ranked #1 best seller. Don't miss out on one of the best products in 2023.

Fits in 99% of Cup-holders

Engineered to fit even the smallest cupholders so you can go everywhere.

COLDEST Armor

Built from the highest grade 18/8 stainless steel.

Customize your COLDIE

Need the perfect gift? Laser Engrave any COLDEST bottle.

THE COLDEST DIFFERENCE

It's NOT just a water bottle. Our COLDEST Water bottles are designed to help you stay colder, longer. We designed the water bottles to stay cold up to 36+ to 100+ hours. COLD tested against 50+ leading brands. They're leakproof, ultra-durable, and fits everywhere. This is your last bottle.

36+ Hours Cold

Leak-Proof

Insanely Engineered

36+ Hours Cold

Leak-Proof

Insanely Engineered

100,000+

5 Star Reviews and Counting

See It In Action

FAQ

How long does it stay cold?

COLDEST bottles stay COLD 36+ hours. Some of our bottles like the 1-gallon can stay cold past 100+ hours. We are continuously improving and engineering COLDEST bottles to be colder every year.

Does COLDEST bottles fit the Cirkul lids?

Yes! All our wide mouth bottle fit CIRKUL bottles! These sizes include: 14oz, 18oz, 24oz, 32oz, 40oz, 64oz, Universal Shaker Series, Limitless Series (bottle with handle),

Does it fit in a cupholder?

Cup Holder Friendly? Size

12oz

Fits 99% of cupholders

14oz

Fits 80% of cupholders

18oz

Fits 80% of cupholders

21 oz

Fits 99% of a cupholders

32oz

Fits 80% of cupholders

40oz

Fits 80% of cupholders

64oz

Half Gallon

No

1 Gallon

No

26 oz Universal Shaker

Fits 99% of cupholders

36 oz Universal Shaker

Fits 99% of cupholders

46 oz Universal Shaker

Fits 99% of cupholders

Is it Dishwasher Safe?

We recommend hand washing to extend the lifespan of any COLDEST bottle.

Dishwasher Safe

  • Powder Coats

Not Dishwasher Safe

  • Glitter
  • Patterns
  • Glossy Paint

Does it float?

Yes! All COLDEST bottles float!

What if I don't like it?

Don't love what you bought? We're happy to accept returns with a valid order #. We offer the COLDEST Happiness Guarantee. Return or exchange your COLDEST product at anytime for a full refund*.
*Return shipping is not included.

4.3
Rated 4.3 out of 5 stars
Based on 3,873 reviews
Total 5 star reviews: 2.5k Total 4 star reviews: 625 Total 3 star reviews: 380 Total 2 star reviews: 154 Total 1 star reviews: 168
82%would recommend this product
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3,873 reviews
  • Rated 5 out of 5 stars
    4 months ago
    The best water bottles

    Amazing can’t wait to stick up with more

    AM
    Amodj M.
    Verified Buyer
  • Rated 5 out of 5 stars
    4 months ago
    Durable Product

    Great product. Sturdy and doesn't leave. Design is easy to use and carry. Wish I could put it in the dishwasher for easy cleaning.

    TH Profile picture for Tiffany H.
    Tiffany H.
    Verified Buyer
  • Rated 5 out of 5 stars
    5 months ago
    First Bottle

    Received my 21oz bottle and must say that I am very impressed. Holds nugget ice upwards of 30+ hours and keeps everything the same temperature as when poured into the bottle. Excellent idea on multiple lids. I love the ease of use and cleanliness of the sport flip-top lid. (The cleaning straw is top notch!) Definitely buying a larger capacity asap!!

    LM
    Lona M.
    Verified Buyer
  • Rated 5 out of 5 stars
    5 months ago
    I love it!

    This bottle keeps my water ice cold like its right out of the refrigerator all day long. With ice, it lasts up to three days with my experience. I’ve had no other water bottle like it!

    AR Profile picture for Angel R.
    Angel R.
    Verified Buyer
  • Rated 5 out of 5 stars
    6 months ago
    Coldest 21oz bottle

    I absolutely love this bottle I takes it everywhere in beach or when I go hiking my water stay ice cold all day

    JT
    Joan T.
    Verified Buyer
  • Rated 5 out of 5 stars
    6 months ago
    Great travel bottle

    Love the size . Perfect for the Gym or a light weight travel bottle .

    JB Profile picture for Jessica B.facebook logo
    Jessica B.
    Verified Buyer
  • Rated 5 out of 5 stars
    6 months ago
    Great purchase

    I love it and best purchase I ever made

    JR
    Jamie R.
    Verified Buyer
  • Rated 5 out of 5 stars
    6 months ago
    The best and the coldest in the universe.

    I love this product been using since 2018. I am very glad I found it the coldest water bottle.

    GG
    Gloria G.
    Verified Buyer
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