I was using a larger version of this bottle all summer but felt a smaller one would be better for winter. It turns out I was right, this slightly smaller size is great when I need less during the cooler months. I’m sure I’ll go back to the bigger one when the weather heats up again. Both bottles keep my water icy cold for hours.

This 40oz flask is great . I put ice in it and they stayed ice cubes for almost 2 days . Which is awesome . It’s a good looking flask and works great couldn’t be happier . I had a hydro flask also but honestly the Therma Flask I bought from you guys functions better

I like to drink water. I mean like 2 or 3 gulps and I've had the hardest time finding a bottle again that I can drink from. Those straws are for sippers, not true water drinkers. While I was stuck with straw bottles for the last 6 months I can't finish a bottle in 8 hours at work. Now I'm back to 2-3 bottles because I can actually drink water again. I only wish the top wasn't a screw on but rather a single pop open.

My favorite water bottle of all time! I unfortunately lost my old one on a trip and pretty much as soon as I realized I had lost it, I ordered one that same day. It arrived less than a week later and all was well again. The best water bottle for the money that keeps your drink ice cold all summer long!

Almost everything about this ThermoFlask is great! The feel in my hand, the seal of the lid, the temperature maintenance, and the 32oz capacity are the highlights. The only item that doesn’t turn the dial to 11 is the thermos being slightly too big for some cup holders. I get that it would be much taller if the diameter were smaller, but even this minor non-compliant doesn’t reduce the utility and my enjoyment.

I am extremely happy with the product. I have taken it filled with water and had that water stay cold for 10 hours. The straw top is easy to clean and it affords me easy drinking. It is just what I have been looking for. The handle makes it easy to carry.

I've been using two of these bottles for years, switching between them every week or so. I take one just about everywhere with me. I finally needed to replace the rubber gaskets in the lids, which I was delighted to discover were sold here, and decided to also pick up a third bottle to add to the rotation. The new gaskets are easier to remove and clean with their pull tabs. I also note that the straw lid has been improved upon, with the upper portion now one solid piece rather than a rubber mouthpiece on a plastic frame. I still prefer the chug lid, but the straw lid is much more useable now.

I got two of them, one for my SO and one for myself and these were the best purchases! I just went camping and my water still has ice 24 hours into the camping trip. Absolutely fantastic! And a great place to start putting the endless number of stickers I've collected!

I first used a ThermoFlask when vising my cousin in Colorado. I loved them so I purchased one for each member of my family as a Christmas present. I personally like the chug lid over the straw but it is nice to have the option. The colors are so cheery and make me happy too! I don't drink enough water so hoping this inspires me to do better.

We love our Thermoflasks. We have the 12oz 18oz and 64oz. I debated on sizes for our pre-schooler. We skipped the child marketed 16oz and went right to the 18oz. Don’t regret it! We don’t worry about our 4 year not having enough water throughout the day. They don’t leak!