Customer Reviews Hydro Flask 21 oz Standard Mouth with Standard Flex Cap

I got mine a while ago and it's still just as good quality as it was when I got it

The hydroflask I bought is so cute. I mean definitely going to buy more

I bought one a week a ago and in love with the style and well everything

I love this! I bring it everywhere. Water is always cold and I love it.

The quality is excellent!!! I loved how well it worked and lived up the my standards!

I took a trip to Hawaii in August of 2015 and I needed a water bottle for all the hiking I was going to be doing. The family friends I was staying with recommended hydro flask so I bought one that week. It's currently March of 2019 and I'm still using the same water bottle after using it pretty much every single day, and it still works just about as well as it did when I bought it. Its been nearly four years and in that time its rolled down a mountain, fallen out of a moving vehicle, and has been dropped a few times so it's dented, and chipped all over the place so I'm amazed that it still works so well. My only complaints are that it does chip and ding very easily. It seems like anytime it falls more than a foot there's another notch in the color. Also, the color seems to be wearing off in places. I bought a flex boot for it yesterday to try to protect it enough to get more use out of it.

Ever since l Got it lve been motivated to drink more water. Love it

The color is gorgeous. The bottle is so sturdy. I love the twist off cap with handle. Fits in my cup holder easily. Best water bottle ever. Beautifully packaged and delivered as well!

I bought the standard mouth 21oz hydro flask in Frost. Holy moly, I am so in love with this color. I have the 32oz in mint but I love the light simplicity look of this color.

As an athlete, I work to keep hydration as a central part of my life. Naturally, I believe water is the most key source of hydration. I take water with me to all of my sporting events. I also bring water to school five days out of the week. As you can imagine, that would be a ton of plastic bottles. This is why I take my Hydro Flask with me to everywhere I go. This bottle has a handle connected to the cap, making it easy to hold. This may sound like an irrelevant feature, but you would be surprised how many times I have dropped my past refillable aluminum bottles. This bottle is the perfect dimensions for all convenience, fitting nicely into the side pocket of my backpack. This bottle is also insulated, making it ideal for many different drinks. The bottle is wide mouthed, making for a smooth drinking experience. The only con I have about this bottle is that when I straighten the bottle back from taking a sip, it has a tendency to splash out of the mouth. This is a problem that has persisted throughout my use of all aluminum bottles. Lastly, the Hydro Flask has been more durable than any bottle I've used so far. It is extremely frustrating investing in a bottle to be refilled for repeated use, only for it to become dented beyond convenience after a short spell of months. This is also a very unsustainable practice, which results in many products that will never even begin to break down in our landfills. For these reasons, I have enjoyed using the Hydro Flask and it has lived up to the hype that has been created around it.

Great product made of solid materials. My favorite thing is that for what dispensers you can look into the hydro flask and tell when it's getting full. Retains temperatures really well too. The lid's top is also great for carrying it around.

I am really happy with this bottle, it keeps my water cool throughout the day and feels nice to hold. Pretty durable as, unfortunately, I dropped mine (full with water) at about waist height and it now has a gnarly dent in it. Regardless, the interior insulation is still intact.

I usually put ice in my water bottles and it loses its temperature. This one stays cold even over night it's a very good water bottle. I reccomend 10/10

This is the best water bottle. It really keeps my drinks at the correct temperature. Hot tea stays hot for a good while, Iced tea stay nice and cold for hours. I dinged it on things and not a scratch or bump on the bottle. Love the design of the bottle.

I got this for me to use while traveling with drinks. Now it is used to have got warm to make warm formula for my baby when away from home. It certainly keeps water very hot for a good period of time. After more than 12 hours I was still able to use the warm water to make the formula with no added cold water. I love it!

Great product, the cap is easy to take off, great size

I bought it for my friend and she loves it. Great gift

I've had a white 21 ounce bottle for a couple years and I love it. I'm getting a new one because all my stickers are worn down and there's a dent on the bottom from when I dropped it on the street a lot, but the one I have is still very useful. There are definitely other bottles that will keep your drink just as cold (or hot), but none are much cheaper than this one, and a hydroflask is the best shape for adding stickers. 10/10 would recommend!

Second time buying this version and it's a winner.

These water bottles have changed my life! They stay cold for such a long time and are such good quality that I have gotten 3!

Considering look, cost, and effectiveness, not a single other water bottle can compare. I recently accidentally left my hydroflask at work overnight, and came back the next day to it as full of as ice as it was the previous morning. Unbeatable!

Love my Hydro Flask and take it EVERYWHERE with me. I've never been this hydrated in my life. I love how long my water stays ice cold.

I am really did enjoy this water bottle it's very sturdy and kept my water cold for a very long time. I also enjoy the style of the bottle it is very fashionable and easy to carry. I highly recommend this product !

I use this water bottle for the gym. It keeps my drink cold for me so when I need a drink the most it satisfies my thirst. It keep my drink cold for 24 hours. It is very durable and easy to wash. I recommend this cup to everyone.

This is a great stainless steel flask. It keeps your drink very cold all day. It's a nice size container, 21oz, which I find to be just right for my needs. I like that the seal on the cap does not leak and that there is a loop to carry the flask on the lid. I would recommend this flask for anyone who likes to use a refillable flask and wants a cold drink!