I originally bought this because my Hydroflask was beat up and I wanted a new one but didn't want to spend $50 on a water bottle. When it arrived I was pleased with the design and the straw lid - it was easy to use, where the straw attaches to the lid was done better than Hydroflask as their straws would come undone frequently and I was really hoping it would hold temp the same. Well, everything was great except the temp. I've had several Hydroflasks since they first came out and they always kept my water cool all day - I would fill it up before bed and still have a lot of ice in the water, I now wake up in the middle of the night to drink room temp water. The length of time the Ironflask keeps water cool just doesn't even compare to a Hydroflask. When I first got the Ironflask I would have cold water until lunch time but now I won't even make it through my morning without the water becoming luke warm.Long story short - if you're buying this as a cheap replacement to the Hydroflask, do yourself a favor by skipping this and invest in a Hydroflask.
Rating: [5 of 5 Stars!]