Hydro Flask 21 oz Standard Mouth Water Bottle Sale

137 reviews for Hydro Flask 21 oz Standard Mouth Water Bottle Sale

Scott Weller
Rated 5 out of 5
One of my fave buys here in !
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Michelle Baldwin
Rated 5 out of 5
Used for work—so far. Ice lasted at least 36 hours
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Christina Sircar
Rated 5 out of 5
She loves it!
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Alan McWatt
Rated 5 out of 5
Good
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Ajinkya Shah
Rated 5 out of 5
I ordered the 21oz for my wife and she loves it. Nothing we have used before the hydro flask kept ice water cold literally all day.
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Natalie Mendoza
Rated 5 out of 5
Good item
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Paul Bosco
Rated 5 out of 5
As described
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Naida Nieves
Rated 5 out of 5
My daughter loves it
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Jeffrey Mills
Rated 5 out of 5
awesome
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Juanita Smith
Rated 5 out of 5
I love this Hydro Flask and the color!
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Crystal Broadus
Rated 5 out of 5
Fantastic! Worth every penny! Stays in hot car for hours....ice! Cruising...ice! Overnight...ice! Yard work.....ice!
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Brandon Blair
Rated 5 out of 5
Arrived as expected, would purchase again
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Yosefine Morales
Rated 4 out of 5
It works. Drink up.
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srikanth vuppalamarthi
Rated 5 out of 5
Great product!
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shannon rogers
Rated 5 out of 5
I love it
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Madison Wunder
Rated 5 out of 5
Very durable
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danielle cormier
Rated 4 out of 5
Maintains temperature of my water for a long time
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Nathaniel Schears
Rated 5 out of 5
I love it. First time having a hydro flask and I got the 21 ounce one and it works perfectly. Worth the money and 5 stars.
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Tyler Pohleven
Rated 5 out of 5
Do you even need to read the reviews?
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David Malachi
Rated 5 out of 5
Hydroflask has never let me down! I'm truly in love with this new color!
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Dalia Vences
Rated 5 out of 5
Easy to carry
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Shane Brinton
Rated 5 out of 5
It's hard to clean and marks don't come off
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Aliyah Singletary
Rated 5 out of 5
I love this product. I use it for water only. Keeps drinks cold for more than a day. Good quality, and for me, handles are important, and the one on the top here is built well.
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Rachel Madrazo
Rated 5 out of 5
Best water bottle
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Joseph Hurt
Rated 5 out of 5
Keeps water cold, leak proof and teenager proof
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Susan Breit
Rated 5 out of 5
This bottle is so fantastic!! Worth the extra bucks.
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Skyler Johnson
Rated 5 out of 5
Love this drink container. You will too.
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Rhiana Roque
Rated 5 out of 5
Keeps my water cold all day!
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Michael Shanor
Rated 5 out of 5
Everyday water bottle for school.
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Joseph Trani
Rated 5 out of 5
I love it
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Michael McLaughlin
Rated 4 out of 5
It was a gift you my daughters friens
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Molly Kornfeind
Rated 5 out of 5
It do the job
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Holly Trevillian
Rated 5 out of 5
Bought for my husband, he loves it, its stylish and durable
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Deb Byrom
Rated 5 out of 5
Great bottle!
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John Forrest
Rated 4 out of 5
I am really thankful for this product and it turned out to be a great gift!
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April Bearden
Rated 5 out of 5
Love love love!
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Arica Gaitan
Rated 5 out of 5
Love the color
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Randy Akemon
Rated 5 out of 5
Love the size for my daughter
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Ore Fagbamiye
Rated 5 out of 5
This is for my niece. It is a very pretty color and was brand new in the package just as advertised.
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Itzel Medina
Rated 5 out of 5
Excellent flask built to last!
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eber Espinoza
Rated 5 out of 5
can't go wrong with Hydro Flasks.
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Aaronton Malone
Rated 5 out of 5
I have now purchased 5 Hydro Flask, 2 40oz and 3 24oz. I couldn't be happier. They are perfect! Keeps your drinks very cold all day.
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Mari Ueda
Rated 5 out of 5
Top comes off a little too easily if you don't have the mouth peice locked. Other than that I like it very much!
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Mona Gordon
Rated 5 out of 5
Best water bottle in the game. I was a little nervous about a black water bottle being left in sunlight, but the water inside stays cold for hours. 10/10 recommend
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Dorian Morales
Rated 5 out of 5
Keep water icy and cool
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Jose Mendez
Rated 5 out of 5
I'm drinking more water using this flask!
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Kathryn Joachim
Rated 5 out of 5
Great Product!
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Martin Maroney
Rated 5 out of 5
A dream come true for my little VSCO girl!
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Molly Brennan
Rated 4 out of 5
Great water bottle. Keeps water cool for hours so you don't have to drink warm water. The only thing that could be better is a reduction in weight of the bottle.
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scott baylis
Rated 5 out of 5
Grand daughter loves it
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Wendy Wells
Rated 5 out of 5
Love this!!! Keeps my ice cubes cubes all day!!!!
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Jake Oakes
Rated 5 out of 5
Great product!
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Nikki Horton
Rated 4 out of 5
Got it for my daughter for Christmas and she loves it!
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Jerome Pierre
Rated 5 out of 5
keeps ice for over 24 hours!
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Jason Bettinger
Rated 5 out of 5
It's great
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Kristin Ferguson
Rated 5 out of 5
Great slim design and keeps ice cold drinks for more than an entire day! Just recently purchased it and used it at the gym to have a cold drink during my workout but sadly it was stolen while I was working out. Highly recommend buying though!
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Denene Powell
Rated 5 out of 5
I had this sitting in a hot car for 7 hours and when I got back to it, it still had ice in it. Amazing product.
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Angela Joynes
Rated 5 out of 5
Love it
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alexa Perez
Rated 5 out of 5
If I add a hot drink it stays hot, and same with cold drinks. I love it because it fits perfectly in my backpack for school and the stickers stay on the bottle very easily.
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Meghan Kinsey
Rated 5 out of 5
Love this because it keeps my drink cold all day. It fits in my car's drink slot perfect so I can take it wherever I go.
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Melissa Valencia
Rated 5 out of 5
So great
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Hebson Bonilla
Rated 5 out of 5
Sturdy and clean looking. Excited to receive this water bottle.
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Adaze Amadasun
Rated 5 out of 5
My kids love the size. Fits nice in their bag.
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D Simon
Rated 5 out of 5
Keeps ice for more than 24 hours. Sturdy.
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Janette Cabrera
Rated 5 out of 5
Great water bottle. The outside always stays dry to the touch and the water stays cold for a long time.
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Brian Barello
Rated 5 out of 5
Perfect
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Mark Hughes
Rated 4 out of 5
Love this perfect for my daughter
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Peter Reynolds
Rated 4 out of 5
Awesome...Ice stays forever...
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Sheila Zwirn
Rated 5 out of 5
We've dropped it a couple times, took it kayaking, and a bunch of other activities. We always have our hydro flask with us. They always keep drinks super cold and are very sleek and stylish.
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Amal Al-Monla
Rated 5 out of 5
Awesome flask, love it!
I added a the standard mouth insulated sport cap to make it easier to use.
I also bought a 40 oz flask directly from Hydro Flask to take to work
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Romare Christian
Rated 5 out of 5
Great
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Jahaziel Contreras
Rated 5 out of 5
I love this bottle so much. I lost it on like the fifth day and was devistated but then found it and it is just so amazing.
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Marion Myers
Rated 5 out of 5
Everything about this product is 100% true. I suggest buying the flex hydro flask because it could cause an incident with the sport hydro flask.
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Tydus Bennett
Rated 5 out of 5
Always good
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Carlos Dunston
Rated 5 out of 5
Love hydroflask products, but make sure you get a bottle brush for cleaning.
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Terrance Brown
Rated 5 out of 5
Bought for my niece and she loves it!
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Matthew Rogers
Rated 5 out of 5
I love, love, love this waterbottle. I have had no problems with it. The only thing is that it can be somewhat difficult to clean because the mouth of it is small

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Michael Cannon
Rated 5 out of 5
Best Water Bottle I've Ever Owned! Hands down, the BEST system for delivering cold/hot beverages that I've come across. And I love that it contains no harmful chemicals like a lot of the plastic containers do. I like the durability of the container, but I recommend getting the Sport Top (well worth the $12.95). It's much quicker and easier to drink from, especially if you're in a car or walking.
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Heidi Cooper
Rated 5 out of 5
As always I am a big fan of hydroflask, this is a great color and a perfect size for on the go and small errands. Would highly recommend this water bottle
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Saundra Pandy
Rated 5 out of 5
Exactly what my sister wanted first thing she did was find stickers to put on it.
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Katherine Martie
Rated 5 out of 5
Great product. Keeps cold things cold, and hot things hot.
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jacob macias
Rated 4 out of 5
I love theses bottles! We have 3 the large 40z and two 18oz, they were great for backpacking in Europe. The fact they keep water cold for hourssssss should be a no brainer!
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Monique Smith
Rated 5 out of 5
Someone gifted me one. So wife had to have one lol
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Samuel Ojeda
Rated 5 out of 5
Great product
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Eryka Dubey
Rated 5 out of 5
I absolutely love the Hydroflask I ordered! It kept my water cold for throughout the whole day and is very useful. What I didn't really like about it which was my mistake but I got a size too small. But that doesn't effect the product it's self.
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Quantrell Stewart
Rated 4 out of 5
Been using an off brand hydro Flask and decided to finally splurge and get a real one. It's awesome easy to hold perfect size and keeps my ice all day long. My water is always cold and ready which is only way I can drink it. The color is gorgeous and Bright.
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Michoel Kahana
Rated 5 out of 5
Arrived quickly and product as expected
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Nathan Patrick
Rated 5 out of 5
Love it. my water can stay cold for a much longer time.
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Ronald Holmes
Rated 5 out of 5
Love size and easy to hold. Keeps water cold
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luz dejesus
Rated 5 out of 5
I bought for my 10 year old daughter and couldn't be more happy! Easy to carry, keeps water cold, and leak proof. It goes everywhere with her!
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Danuell Lucas
Rated 5 out of 5
Will fit my cup holder in my card
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Patrick Gagnon
Rated 5 out of 5
As expected and packaged well. These are great water bottles and daughter loves the color.
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Betsy Case
Rated 5 out of 5
My niece was super excited to receive this. And she loves it.
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jose Sandoval
Rated 5 out of 5
This is such an awesome water bottle. I can leave it in the car in the heat of the day and the water is still just as ice cold as it was when I filled it up!. Took it out paddle boarding with me and although it was 103* outside, my water never got warm....... Still ice cold. Totally worth it!
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joyce tolentino
Rated 5 out of 5
My daughter absolutely loves her hydro flask. The only downfall was when she dropped it, it dented the side instantly.
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Erika Pacheco
Rated 5 out of 5
Keeps my water nice and cool all day. I actually bought a second (bigger) bottle to carry that much more water.
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Wandee Srida
Rated 5 out of 5
Will be buying more in different colors!
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Jessica Raab
Rated 5 out of 5
Amazing price awesome bottle
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Victor Medina
Rated 5 out of 5
Keeps cold very well, havent tryied it with hot stuff but its very nice material... I love it! Gave it to a friend who does motocross and he loves to take it with him!
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jim plunkett
Rated 4 out of 5
My grandson who is 11 gave this to his 9 year old brother. It was a bit hit. Kids love this and it is a perfect size.
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Richard Selfridge
Rated 5 out of 5
Pretty color it's a lavender
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Brittni Miller
Rated 5 out of 5
It was packaged nicely with lots of padding in addition to being covered by a cloth bag (which probably protects from scratches). It was true to color (hibiscus) and looked even better than I thought! My daughter loves it!
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Junaid Zerger
Rated 5 out of 5
Fits easy in backpack works great
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Sierra Rodriguez
Rated 4 out of 5
Great water bottle. Looks as pictured, insulated, my daughter needed a water bottle that would fit in her back pack side pocket for college!!
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Brooke McClellan
Rated 5 out of 5
Daughter loves it for softball.
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Shruti Gopinath
Rated 5 out of 5
Great quality! Received just as described, no issues.
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Joseph Marsh
Rated 5 out of 5
LOVE LOVE LOVE my flask. Won't go anywhere without it.
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Darren Trybalski
Rated 5 out of 5
Rugged bottle with a secure top. Keeps liquids cold for a long time. Expensive, but worth the cost.
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Sanquinella Calhoun
Rated 5 out of 5
I have had mine for 1 year now and it is still perfect! It keeps the water cold for a really long time and it fits almost anywhere, other than that the build is really good and mine still looks perfect.
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Aletha carver
Rated 5 out of 5
It says everything it describes it as! I was afraid this would be a knock-off but it isn't and we have used it for 3 years with no problems! **Knock on wood**
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Adam Leavitt
Rated 5 out of 5
I use it all the time I love it. Leave it to dry on its side after each use!
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Amanda White
Rated 5 out of 5
Cold water all day every day, dents fairly easily but that is to be expected of an insulated bottle. The finish doesn't scratch too easily and it feels so good in your hands. Amazing product.
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Danylo Semenov
Rated 5 out of 5
I love Hydro Flask products. This one replaced one that I lost. I prefer this opening & screw top, easier to drink out of than the flip top I used to have. Love the blue color, like the texture when I hold it.
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Brandon Bush
Rated 5 out of 5
I like the fact this bottle does not sweat and keeps the liquid cold. I did purchase the sip lid separately, which makes it easier to drink from the bottle vs having to use two hands to screw off the cap. The 12 oz size is not too big for my needs. I would purchase this item again.
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Emily Elhilow
Rated 5 out of 5
I have tried several brands of water bottles, this is by far the best, I only use it for water, it keeps water cold for very long time, doesn't add any weird smells or tastes, cleans very easily, and it has a very high quality look and feel to it.
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Damon Hudgens
Rated 5 out of 5
Love this bottle ! It's not the easiest to clean but it's leak proof and holds the perfect amount of water. The white is pretty. Shows scuffs but anything white does. Fantastic bottle.
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Brian Duvall
Rated 5 out of 5
As expected. Keeps liquids cold all day (or more precisely until I finish it). Haven't tried hot liquids like tea or coffee yet so can't comment on that. So far I like the construction and texture of the surface makes it less likely to drop. Thanks :-)
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Kusian Thomas
Rated 4 out of 5
My daughter loves it
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Jennifer Standley
Rated 5 out of 5
My kiddo loves the color of this and the size is easy for her to carry. I nearly freaked at the cost but I'd say it's worth it she's using it everyday.
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Nicole Kirkwood
Rated 5 out of 5
Best water bottle ever! Hydro Flask was suggested to me by a friend who lives in a hot climate and needs to keep drinks cold 24/7. I used this for the first time yesterday by packing it with ice at 6:30 am and it was perfect all day! It still had ice in it when I got home at 7:30 so I filled it with more water and let it sit all night. It still had ice (small amount) in it and was cold at 8:30 this morning! I'm so happy I bought this and would suggest it to anyone who takes long hikes and needs drinks to stay super cold.
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Grace Yong
Rated 5 out of 5
Apparently these things are all the craze it's good for the kids to take to school and their activities. It's easy for them to fill in their own
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Shawna Alexander
Rated 4 out of 5
As expected from the Hydro Flask brand. No complaints. Keeps ice for several hours.
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Corey Ransom
Rated 5 out of 5
I got the 24oz which fits perfectly in car, purse, gym bag, and etc.
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Quincey Kyles
Rated 5 out of 5
We love them. We haven't had them long, but so far so good! Hopefully the stand the test of time and the warranty holds true if ever needed to be used. They will be very useful in the hot days to come! So glad we decided to purchase them!
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Peter Palmer
Rated 5 out of 5
I love this bottle. It keeps everything cold for most of the day. No metallic taste like some containers. I just wish the cap was attached to the bottle neck so that it doesn't get lost.
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Victoria Lo
Rated 5 out of 5
It's a Hydro Flask and all these people are saying that they got used and dirty ones but don't believe any of them they all just used it then took a picture and wrote a review I have no idea why they would do this but you never know maybe they wanted to return it or something and get a free new one because they didn't like the color. All I'm saying is don't believe them and if you want to buy it buy it trust me it's going to be fine and if not it's just a water bottle.
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Susan Teeter
Rated 5 out of 5
Good quality, feels durable, only had it for a little over a month with daily use, but no leaks. Additional to this purchase, I got the three cap package and replaced the original standard cap that came with it. I prefer the sport cap for ease of use.
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Kaiden Hubbard
Rated 5 out of 5
I thought why is everyone buying this Hydro Flask? Well, there's a reason: it's really great at keeping water nice and cool. I left my ice in their for 24 hours and it's still in the flask. I even left it in my car (it was about 95-100 degrees outside) and it still kept my water cold. I must admit.. it was expensive, but it was worth purchasing.
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Kimberly Conley
Rated 5 out of 5
I use this product for my school day every day, and I find that if I put even only a handful of small ice cubes in there in the morning, the water is still really cold by the time the school day is over. I love the color options (I chose red), since each person can find their fancy. Just make sure to clean it at least once a week--otherwise it starts to look really used on the outside of the bottle. Last note--I chose the leakproof lid, and this thing is REALLY leakproof, which has been my issue with past bottles I've used. Will hope not to buy again soon because it will last a long time, but won't hesitate to get it again when it eventually wears out!
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Kevin Hawkins
Rated 5 out of 5
We love this hydroflask. We opted for the 18oz because my daughter is in 1st grade and it was a PERFECT size for her. It's still large enough that she'll have sufficient water but small enough that it's not too big for her hands or backpack. The color is perfect! We like it so much I'm buying myself one this week!
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Rebecca Gonzalez
Rated 5 out of 5
I purchased this as a gift for my 8 yr old. She begged for one because her 18 yr old sister has one she carries all the time. It is a good size for my daughter, easy for her to fill herself, and she is able to easily carry it when it is full. I did purchase a separate lid that she can use a straw with. She plans on taking this to school with her to use during the day.
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KENNETH HUTTON
Rated 5 out of 5
My daughter asked me to buy this bottle, because so many of her friends have it. It's pricy but I guess this is very trendy water bottle, and she absolutely loves it. Got another small kids version for my other kid.
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Eduardo Larronde
Rated 4 out of 5
I love this waterbottle, it keeps my water cold all day, I only put a few cubes of ice in each time because I dont like my water to be to cold. But I put in my standard amount of ice, and the it got left in my car all day, and it was a pretty hot day, and It was still cold after being in there for a few hours, it was like half full also which is even more impressive. I love how there is also no sweat or condensation build up on the outside, despite the freezing water inside. The water bottle looks great, and I love the ease of transport, it fits great in a side pocket of my backpack, and it is easy to carry. I love it and would recommend it to anyone.
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Tamella Zamanova
Rated 5 out of 5
The flask is beautiful! The color is very vibrant. It is sturdy and fits perfectly in my backpack (side drink holder). I could have probably gone with the 21oz as well but this 18oz is perfect! Fits great, very handy and keeps my tea very hot and my water m very chilled through my class days. Cery happy with this!
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Kathleen Marie
Rated 5 out of 5
Literally I filled this full of ice and water, left it in my hot car in the Arizona sun for a few hours, the ice never melted. A day later that same ice STILL HAD NOT MELTED! What even is this thing and where has it been all my life?
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Maria Vizcaino
Rated 5 out of 5
If you're looking for a sports cap, the klean kanteen one for narrow bottles fits great and works really well!
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David Proscia
Rated 4 out of 5
Sleek and beautiful design + Slip free grip / Powder Coating
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