Keeps things cold a long time! I use these for my night stand water bottle. If I accidentally knock it over in my sleep it won’t spill everywhere and if I want a cool drink in the middle of the night these keep beverages cold the whole night through. I also use them at work and it stays cold my whole shift. The only down side I’ve had with these is that they do not fit in any cup holder. They’re just a little bit too fat for even my largest cup holder. Otherwise they’re fantastic! I haven’t had any leaking issues. I fill these with sparkling water every day and for the most part the water doesn’t go flat until it’s half way empty

Got a great deal on this from Best Buy! $20 including taxes! This bottle has a nice large opening in the top to add ice. Then the Chute opening to drink out of allows you to get a lot of water when you need it. No sucking on a straw only to get a few drops here. Great design, but it is quite heavy when filled with ice and water. It does stay cold ALL DAY though. Very happy with my purchase.

I love this water bottle! Kept my water cold even when I left it in the car in direct sunlight for a couple hours. My only gripe is that it’s so fat that it doesn’t fit in any of my cup holders.

I purchased this thermoflask because I needed something bigger than 20oz. I fill the thermos 1/3 of the way with ice and the rest with water, each day, at 7am. If there is any water leftover by the end of the day, it is still cool. The ice is gone, but the water is cool. I have checked as late as 8pm (same day) and the water leftover is cooler than tap water. If I had to give a negative, it would be that the outside of the bottle is susceptible to dings, but this does not effective the overall purpose of the thermoflask. Also, the stainless area of the upper part of the exterior is a great place to etch on a name.

The BEST insulated bottle I've purchased! Keeps drinks cold/hot for a very long time. Doesn't sweat and has a loop if you need to attach it to anything.