ThermoFlask 40 oz Double Wall Vacuum Insulated Stainless Steel Water Bottle - Reusable with Leakproof Chug & Straw Lids - Keeps Drinks Cold 24 hr/Hot 12 hr - Easy Maintenance - Gym/On-the-Go, Cobalt

I really like this water bottle. We have purchased five of them over the years and the most current purchase is replacing one that I’ve been using since 2019. There are several pros and the main ones are that if you fill it with ice, your drinks will stay cool for over 24 hours. We pretty much use ours for water so we don’t have to worry about ice watering our drinks down, but I’m sure if you put another drink in there like lemonade or a sport drink that it would stay cool even with less than a little to no ice. The second main pro is that you have two different types of lids: a straw type and the quick chug type. I use a straw and my daughter likes to drink hers with the big open chug style. The main con is with the flip up straw function, which is what I actually use the most. Sometimes a little bit of water will catch in the top of the lid after you close the straw, and it will spill out a few drops. It’s not very much and I’m kind of used to it so it doesn’t bother me much but it’s annoying at first.

I first bought the 64 oz. bottle a year ago, because I drink a lot of water at night and wanted a big bottle that would stay cold all night long and hold a significant amount of water. This bottle went above and beyond my expectations. I noticed the first time I put ice in it that when I went to fill it the following night, the ice still hadn't melted, after 24 hours. Amazing. That to me is the best thing about these, how long they can actually keep a drink cold, but it isn't the only great feature. The bottles are elegant and well designed. They're heavy duty and feel super sturdy. I dropped my 64 oz down the stairs trying to carry it with a laundry basket and it didn't dent or even really scratch. The bottles are super easy to clean, each piece of the lid comes off so you don't have to worry about scum forming around the straw. I loved it so much that a few months later I bought two more, the purple and black 32 oz bottles. My wife and I wanted to start making our own iced lattes during the summer, since they're like 8 dollars each now, and needed a good bottle with a straw that would keep our drinks cold throughout the day. I instantly thought to look up if they sold 32 oz bottles (size of a large Dunkin iced latte) and sure enough they did so I got them. They've been awesome! I work outside a lot and even In the summer my drink stays ice cold and the ice won't melt until long after I've finished it. Took advantage of the prime day sale and ordered another two (40 oz white and purple). They are extremely well priced compared to their competitors. It's just really refreshing to find a company that makes quality built to last products at a decent price. Can't recommend these enough.

I've had a few steel vacuum insulated water bottles like this and this is easily the best one I've tried. It hits the most important marks of keeping my water cold all day (even if it's been in a hot car for a while) and being leak proof, but one of the biggest concerns before I received the product was the straw lid. If you search around on Amazon for one of these bottles that comes with a straw lid, you'll find many reviews saying they work terribly. Even some reviews for this one weren't favorable for the straw. But I am happy to report that the straw works perfectly. This was actually the main reason that I was shopping for a new bottle, because the straw lid I had for my Hydro Flask would randomly become very hard to suck out of and I would have to partially unscrew the lid to allow more air in since the little air valve evidently wasn't working correctly. With the Thermoflask I have not had this issue one bit. Every time it's extremely easy to suck water through. And not only that, but the end of the straw mouthpiece is rubberized and feels well-made. The top of it is slightly rounded so it's more comfortable than some that have a completely square shape. It's also nice that nothing aside from the straw sticks straight up from the cap that you can hit your nose on when you go to take a drink. That was another problem I had with my Hydro Flask straw cap. So I would definitely recommend this a good quality alternative to some of the more expensive brands like Yeti or Hydro Flask. The one piece of advice I would give is make sure you know what size you're choosing. I picked the 40 oz not really understanding exactly how big that would be because it's hard to tell from the pictures. It turns out it's kind of massive. It's nice that you don't have to fill it as often and is perfect for taking on trips where you might not have access to water for a while, but if you're going to use it as a daily office water bottle, you might want to consider the smaller size or be prepared to grab a nice heavy object every time you take a drink. The 40 oz also won't fit in a lot of cup holders.

Updated- Bottle did come with chug cap. I found it in the bottom of the packaging. Thermoflask is a great bottle, however what I received was not as advertised. Listing says bottle comes with both chug lid and the straw lid. Bottle received only came with straw lid. I don’t want the straw lid.

Love thing. Keeps my liquid cold for over 8 hours. Fits in the cup holder. Very durable. I have dropped it a couple of times. No damage to the product

The ThermoFlask Insulated Stainless Steel Water Bottle with Chug Lid & Straw Lid 40 oz, Cobalt starts out as a decent value for the price. I paid $25.49 for mine, which is comparable to the Kodi brand 32 oz bottles sold at the local grocery chain. The bottle is a dual wall vacuum insulated design with an attractive paint color. That seems very durable and long-lasting. I did have concerns about the lid. You get both a straw lid with flip-top, and a dual "chug" lid. Those are just plastic, with a small rubber seal to reduce (not eliminate) leaking. The smaller flip top tightens down pretty securely, but the overall lid is very inexact when attaching to the bottle. There's no stopping point, so you feel like over-tightening is going to strip out the plastic. There's no metal threads on the top, just plastic. I haven't tried to see how tight it will get, because I don't want to ruin it. When I tightened it as much as I felt comfortable, it still leaked. Going on a long camping trip, the bottle held up well. I had it in the side pocket of a backpack, so it was not tilted or challenged in terms of leaking. It kept my cold drink cold all day. The insulation works well, and overall I was very pleased with it. I'm still not 100% sold on the long term durability or sealing of the plastic lid, but for the price it was a nice, big, insulated bottle that does most things well. I would probably buy it again. NOTE: The product title and listing details clearly state "Dishwasher-Safe Reusable Bottle & Lids," but you can see where it says "Handwash Only" on the bottom of the bottle.

Great water bottle. I really like there are two lids and the loop to carry the bottle. I had purchased three contigo bottles in the past but the bottoms kept falling off making them unstable so I tried this one. It’s exactly what I’ wanted with no bottom to fall off as the bottle is one piece. I use it for water while working out and it does a great job keeping my water cold. I got the purple one; love the color.

Great cup. My kids favorite color is purple. Keeps water cold. Comes with straw cap and extra straw + open spout cap. Great capacity. No leaks.