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

I have been trying to drink more water and then this product comes along! It keeps water cold longer than any bottle I have ever bought. I have even left water in it and it is still cold the next day (without putting it in the refrigerator)!

I've had this Hydro Flask for about a month now and I love it! I mainly keep my coffee in it and it keeps it really warm, the longest I've had coffee in it was about 2 hours and it did a great job keeping it warm the whole time! I have also used it for water and it stayed nice and cold for quite a few hours. I absolutely love the blue color and it's lightweight and doesn't leak. I would definitely recommend this product!

This flask is so beautiful and rich looking. Without even picking it up, I could tell it is a quality product. Once I actually did use it, my first impression was verified. It kept my coffee hot all day and is large enough to hold a large mug's worth.

My daughter uses this daily to take to track practice. It keeps her water nice and cold and will still have ice in it at night that she put in it early that morning. It is a nice stylish color so it is easy to tell hers from everyone else's and the lid fits nice and snug so no leaks or spills.

So impressed with this Hydro Flask! It is durable, the perfect size for tucking in a backpack or tote and keeps my beverage cold for hours and hours. It is made of stainless steel, doesn't sweat and fits great in your hand without slipping. And its BPA and toxin free!!!

This is s great travel flask! It keeps drinks hot or cold for long periods of time! I would recommend it. It's durable and cleans easily as well. My daughter uses it regularly for ice water or coffee.

The combination of the feel, the size, the color, and the keeping liquids cold or hot for extensive period of time, is amazing. I'm a happy camper. I love it and highly recommend for anyone from kids to teens and adults to elderly. The whole family will love having their own.

When my hydro flask came I couldn't wait to try it out! But best of all I'm so in love with it. My coffee stays hot in the morning and my water is cool and thirst quenching every time! This is my favorite beverage container and it goes with me everywhere!

I absolutely love good water bottles. Living where it gets unbelievably hot all day I want a water bottle that will have cold water in the bottle and not condensate all over where it is sitting. They Hydro Flask does just that! First, my ice lasted in my cup for 12 hours, huge plus in my book. The opening is wide enough I can easily get ice from the ice maker and not have to put it in individually. The only downfall is I try to drink to fast and sometimes th r water spills on me (but I mean I'm sure it's just the way I drink my water from the bottle). The cobalt color is absolutely stunning as well! I also like the easy to carry loop in the lid. This bottle is absolutely the best bottle I've had in a long time!!

Every weekend for my long trips to the shore, I bring this thermos! It keeps my coffee hot the entire time. I love the design of the bottle, the grip, it doesn't burn you on the outside when handling it, and did I mention it's super easy to clean? It's also is great for cold drinks as well, as the bottle doesn't sweat. Love love love my hydro flask ever since I got it!

I love this hydro flask 21 oz in color white , it keeps my cold bervages cold & hot bervages hot .this is a very good thermos with a great lid no spills unlike other thermos I have used in past I highly recommend

The flask has a great robust feel to it without the added weight. I could easily carry this on me without tiring my hand or arm muscles. Works well with practically any beverage! I can't wait to use it this winter! Thanks!!

I love this. It keeps my water cold all day. No weird after taste. Not too heavy and fits in cup holder. I love everything about this water bottle. My friends have complemented this as well and they all want one

I purchased this bottle for my truck driver husband so he could use it for his hot chocolate in the winter and his tea in the summer. He loves how it keeps his drinks cold and how it taste like it was just made. It doesn't lose its flavor like with other bottles or containers.

I love the design and size of this Hydro Flask.This finish on the bottle and the handle makes it easy to hold.The lid is great and the screw on top makes it really secure.The double wall vacuum insulation really keeps cold drinks cold and hot drinks hot for hours. I've used this for everything from water to tea and I'm very happy with how it keeps the temperature of the beverages. I love this bottle and take it everywhere with me.

Wow! I could not be more pleased with the Hydro Flask 21 oz bottle! It lives up to all of the claims about keeping cold drinks cold (for hours and hours) and hot drinks hot as well! The 21 oz size is perfect for me to carry without it being too bulky or heavy, and I love that the sides are kind of textured slightly so it's easy to hold. The lid opens easily, but holds tight, so there is no worry about leaks and I love the little handle on top for easy carrying! I love knowing I can put whatever I please in this bottle and it will stay hot or cold ALL DAY LONG! Love it!

I got this water bottle for my husband who was having trouble finding one that didn't leak, held enough water and fit on his car's middle console. So far, it has checked all the boxes and is the only water bottle he is using. I would definitely recommend buying this.

I got this a month ago to try out and I am so happy that I did.I tested it out to see if it really kept things cold for 24hours and hot for 12hour . I tried it with hot apple spice tea first . I left it in there for a few hours it was still hot after I woke up . I then tested it with something really cold and I started cleaning the apartment . I drank from the hydro flask different times while cleaning and the beverage in it stayed cold hours after I was done.I was amazed . I tried it again and left some ice cold water in it for 22 hours it was still cold after I drank from it. This product is great for people who are very busy and always on the go . This product is also great for people who wake up in the middle of the night like I do and need a drink of water. It is also perfect for chilly Fall nights and you want something warm or hot to drink during a walk . * I received this product free to test and or try out courtesy of bazaar voice and try it sampling . All thoughts and opinions are 100% my own and are based off of my own personal experience with this particular product.*

I recived this product an it is very durable, I actually put water in it an it kept it cold for a very long time. I was surprised cause I had other cups but they don't keep drinks cold like this jug does.

I love this hydro flask,it is so good I live in miami and it is really hot hot hot over here, so I have been,using my hydro and mantains my,water, very cold practical all day. I even put the cap on the freezer for some min, to be more cold and mantains my water really cold

I received a free sample and it has become my go to water bottle! I love that it keeps my water cold and my ice seems to last longer. I like the wider mouth, making it easier to add ice and also easier to clean. I like that there is no sweat, so I don't have trouble grabbing the bottle to take a drink. Oh, and I love the color!

What a great water bottle! No leaks! We used it when we camped in North Carolina. It was great and easy to take with us while hiking! I'd definitely recommend this bottle! The color is a great shade of blue. Easy to wash!

The Hydroflask keeps my tea hot and my iced tea cold for most of the day. It's a great product. Very easy to clean. I just have a bottle brush that I use to clean it out with. It works as promised to keep my beverages at a good temperature.

It actually keeps coffee hot for hours!!! Also we had some juice in it for 6 hours and I was still really cold when I went to drink some and I didn't even put any ice in it!! You should definitely buy one!

I recieved this cup a few weeks ago and it is now my favorite! It will hold ice for 2 days and keep hot beverages hot all day!! It is very well insulated and great for outdoor adventures or just at home or work!