Hydro Flask is awesome. I filled it with ice before I left ...
919548
Hydro Flask is awesome. I filled it with ice before I left on a road trip. It sat in the car for 2 full days & there was still ice in it!  Keeps hot drinks hot for hours & hours.  Definitely would buy again.
1789452
I have both the coveted Hydro Flask brand and the 45 Degree Latitude. I can tell you that I could afford to get the large bottle in the 45DL and I reach for and use it every day! The hydro flask sits as I could only afford the smaller one.
That being said, I tested both bottles one day and they performed exactly the same! Ice cubes unmelted at the end of the day! Save your self some money for paying for the Hydro Flask logo and buy this great quality product!
2772898
Absolutely LOVE my flask! It always stays cold and keeps ice for quite a while. One of the best purchases I've made!
3020564
Amazing!!!! I'm so in love with my hydro flask. I was hesitant to spend the money at first, but it was worth every penny!!! I actually bought 3 more after this purchase for family members!
701185
I love these!  I got rid of all my other bottles.  I have Hydro Flasks in a few different sizes. They keep my cold drinks cold and my hot drinks hot. I use this everyday.
2220010
I really do love my Hydro Flask water bottle and satisfaction is guaranteed. It keeps the water cooler throughout the day. Then recently I bought another Hydro Flask for my coffee and when I opened the package, I noticed the damage on the cap/lad and I'm so disappointed why that happened to me but of course I'm going to replace it.
2742417
We love the Hydro Flasks.  We purchased this one because of the additional size for when we are hiking.  We needed to bring more water with us.  We fill it with ice and water and the water will stay cold for the full day or until it's gone.  This is the best thermos we have purchased.  Love it!
1717883
I loved my Hydro Flask so much, I bought this as a gift.  My son in law loves it!  Great color and high quality.  It really does keep beverages cool for hours and hours and hot drinks hot for a long, long time.
4018095
I own a Hydro Flask that was purchased over 3 years ago and LOVE it! I've put ice in there before and it keeps my water cold for over 24 hours. There are ice chunks even after 24 hours! I recently dropped my 64 Hydro Flask on the ground and there was a dent in the bottle. After 3 years of daily use, there were enough scratches (and now a dent) that justified me getting a new one. After one week of use, I can say that the quality of the new Hydro Flask is no longer the same as the old one that I love. The ice melts by the end of the day. Just for kicks, I filled both my old and new Hydro Flask with the same amount of ice and water. Placed both in the same spot and at the end of the day, a difference in how cold it keeps my water (and how much ice was left over) is noted.
4785563
This is my second Hyrdo Flask. I got my first one on the way to Disneyland, and it was a life saver. It held ice for 24 hours while we were walking around all day in 90 degree heat. Having ice cold water all day long was amazing. I liked it so much I immediately ordered this bottle for my iced coffee in the morning.

I have been telling everyone I know how impressive these are. I have had all sorts of bottles over the years, and nothing holds a candle to the Hydro Flask. They are absolutely worth the money.
1085377
My second Hydro Flask. Bought the larger bottle after finding myself using the Hydro Flask at home. It does an amazing job keeping cold beverages cold and hot beverages hot, even after hours.
3715518
I love the Hydro Flask. It keeps my drink cool even in a hot car while I do a beach run. Keeps my coffee hot for hours. Removed one star because a 4 inch dropped chipped a large segment of paint of my flask, otherwise it would be a 5 star review.
2364640
I was so close to getting myself a hydro flask but I found this and it's cheap. I got myself a 32 oz and I'm so happy I bought this. It keep the ice for at least 24 hours and I love it. I recommend it
59090
Love the hydro flask and how it keeps my drinks hot or cold. Just wish I would have ordered the bigger size!
4131125
Hydro Flask, where have you been all my life??
I go about 3/4 of the way with ice, and fill to the top with water. As long as I keep the flip top sealed when I'm not using it, it'll keep my water ICE cold for days. I forgot it in the backseat of my car on 100* day and 24 hours later there was still ice floating around in it. Phenomenal for days I'll be outside at games or even in the yard.
1602657
I used to have a Hydroflask. However everyone at my work place started getting one and had almost all of the same basic color. I was looking for one that would do the same as Hydroflask and had different colors. Fluid Sports is amazing it does the same thing. Paid way less than Hydro Flask and I think I got my moneys worth already. I love the teal color and it stands out. Holds the cold water and hot water for a long time. No matter how hot it gets in FL, Japan, or the Carrier the water always stays cold and I don't have to worry about drinking warm water.
830941
I love my hydro flask! It keeps ice over night and my drinks cool throughout the day. Definitely worth the price!