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A Daily Driver.
With the Hydro Flask 21oz Standard Mouth Water Bottle, you're able to stay hydrated throughout the course of your work day. The 21oz easily fits in the side pocket of your backpack, shoulder bag, and your car cup holder, while the 18/8 stainless steel construction keeps your hot beverages hot up to 12 hours and your cold beverages cold up to 24 hours.
- Stay hydrated throughout the day with this water bottle
- Stainless steel construction is highly durable
- BPA-Free and phthalate-free for your convenience
- Keeps beverages hot up to 12 hours
- Keeps beverages cold up to 24 hours
- Item #HYF001V
What do you think about this product?
October 14, 2019
bought this at a gift request for my son. Loves it and it does everything it's supposed to. has been abused and held up just fine.
September 28, 2019
Carlos Murillo Cordero
July 24, 2019
Product great, Backcountry Not So Much
The bottle is awesome, and with a sport cap you can't go wrong (which does fit this size by the way). I now have the coffee flask and the water flask and love them. Backcountry though delivered my gray flask with a huge black scuff on it that won't come off. It was a birthday gift so there was no time to return it, but just looks bad. I was embarrassed. Definitely doesn't look like I got it from a legitimate retailer.
June 19, 2019
Best in the industry. Ice for days. Hot for hours. Great size. Very durable. I have multiples.
June 10, 2019
Love this size when I'm not going on a big excursion. It's lighter and the perfect width for stuffing in a bag, side pocket or cup holder.
May 16, 2019
Fire and Ice
Hyrdo Flask really does a great job, by keeping Hot drinks hot for a few hours and ice for hot summer days. Always keeping the refreshments tasting great.
March 18, 2019
I had a 32 oz but it didn't fit in my new car's cup holder so I got this smaller one. I like the slim size it easily slides into small spaces in bags. I like it enough that I bought some for my parents and my kids! My daughter frequently comments how great it is that she can have cold water all day!
March 7, 2019
Can never have too many
Great water bottle that is the perfect. size. Keeps ice throughout the day so you always have cold water in the hot sun. Also a perfect gift!! I have so many Hydro Flask products and love them all.
February 21, 2019
I have my 40 oz one and love it so I thought I'd get my mom and siblings their own (smaller size) for Xmas for their everyday needs. They love them. They'd never had a hydro before but now they won't go back!
February 10, 2019
Ideal Water Bottle
Hydro Flask's claims that its bottles will keep cold drink cold for 24 hours aren't an exaggeration. If often put a drink with ice cubes in the bottle, and by the next morning some of the ice is still there. I've used several sizes of these bottles, and the 21-ounce size is my favorite. It is big enough to hold more than two cups, even with ice added, and the bottle is still an easy fit in my hands. And it's stable enough on my task that I have yet to knock it over. It's a great bottle!
January 30, 2019
Own a few and this one is the perfect size for quick trips..
December 28, 2018
Hydro Flask for the win
You can’t go wrong with a hydro flask! I gave this to my girlfriends dad and he was very impressed with how long it keeps ice water cold. The lid is easy to screw on and off and the small handle is nice for carrying.
December 26, 2018
I gave this item as a gift, but I own several myself. I love these cups. They will keep a drink cold all day. They are great! Also, they have lots of colors to choose from.
September 12, 2018
Fits Cup Holder Perfectly!
I own numerous HydroFlask bottles, but none of them fit my car's cup holder, so I usually hear it rolling around the floor as I drive...Annoying. But, this size is perfect for keeping hydrated while driving. :-)
August 15, 2018
I own several Hydro flasks and the product couldn't be any better. I have one for hiking, work, the car and just everyday. I always have one to take on the go and it keeps my drinks cold or hot for several hours of the day. Definitely get yourself a Hydro flask if you don't have one already!
August 1, 2018
My go-to Insulated Bottle
If you need an every day bottle that has to be insulated, then this is the one! I have various bottles from plastic, to non-insulated, to this one - insulated, and this is one of my faves. Buy this if you can handle the extra weight and you need to keep your things cold or hot!
July 26, 2018
Great water bottle
keeps my water cold all day long
July 2, 2018
Holds my water and keeps it cold what more could I want right?!
June 18, 2018
Awesome for hot yoga!
I was unprepared for just how much I would love this bottle. I got the sport lid to go with it, all specifically for hot yoga, and this thing does not disappoint. I can fill it with ice and water, take it into a 92-degree room for 75 minutes, and at the end of it all there is still ice water in that bottle, and no puddle on the studio floor. I also love the bright yellow color, it's like it is happily reminding me to hydrate. Highly recommend!
May 16, 2018
i love this hydroflask. I have a lot of the rounder ones so i wanted to switch it up with this one. Fits in my center console so its perfect for on the go!