Ninja Thirsti 18oz Travel Water Bottle

This insulated 24oz bottle works great! It keeps my drinks cold and fizzy .

I bought this bottle a couple of weeks ago and I love it. My carbonated drinks don’t lose their fizz and they stay cold.

Works great love the quality and how it keeps drinks cold and fizzy

This works exactly as advertised. My drinks stay cold and I don't lose carbonation, all day. It does need to stay upright, because it leaks if you drop it on its side, or at least the one I have suffers from that issue. I haven't taken the time to check the gasket, so it might just need to be seated in the lid better. Overall, it's an amazing product.

I am desparate, so I am keeping this, but it is pretty awful. I've only had it a few hours, so I cannot confirm that it actually keeps the fizz, but I can say that it is impossible to drink from without spilling water all over yourself. What it needs is a straw/mouthpiece opening so that you don't have to open the water bottle all the way in order to drink. I am not optimistic that the fizz won't go within five minutes. So, I may yet have to return this item. Very, very disappointing.

I absolutely love this water bottle! I made a promise to myself if I bought one I would have to drink water... I'm drinking 3 a day now!! Love how cold it keeps my water!

Hold carbonation for at least 24 hours. Keeps drink cold just as long.

Finally, a bottle design specifically to use with carbonated beverages. It works! And the small version, 18 oz size, is easy to hold. Definitely recommend tothers.

I love the bottle it doesn’t leak at all. It’s perfect

This was provided as a freebie when I bought my Ninja Thirsti recently. I was skeptical about the claim that it would keep the fizz in my seltzer for an extended period of time. Lo and behold, it kept the carbonation in my drink all day. It kept cold as well. The only thing I would like is a flip top closure instead of needing to unscrew the top every time you want a sip. Otherwise, it's great. Thinking of purchasing the 24 oz.

Keeps drinks cold long term great product doesn't sweat

I had high hopes for this bottle, but I've had it for several months now and am disappointed with the product for two reasons: 1. It does leak. I use this bottle solely for carbonated water and keep it in a lunch bag on my drive to work. If the bottle gets jostled around in the car, my entire bag is soaked. Even with the bottle placed upright in a cup holder, if the water is super fizzy, there will be water leaking from where the bottle screws together (not from the cap). I have tried using superhuman strength to tighten it, but that doesn't seem to solve the problem. 2. I have washed the bottle cap both in the dishwasher and by hand and there is a mildew smell coming from the screw cap that I cannot get rid of. I have tried removing the gasket and using a tiny scrub brush to get into all the nooks and crannies but it still lingers. Due to these issues, I've been pretty disappointed, and I've basically stopped using this bottle. It does a decent job of keeping the water carbonated, but I would not say it's all that stellar at this. I used to use a different bottle that kept water super carbonated, but it was not designed for carbonated beverages and warned against doing so, hence why I purchased this bottle.

Love this.my drink stays cold all day and carbonated all day.

Love the cup…. The handle is cute and you can drink free style or through the top. I usually take the top off and guzzle. I have this thing with that coconut/ pineapple mixed with the lemon tart

I really enjoy my new travel bottle. Neat that I can stick it in the dishwasher too.

This is my third Thirsti cup, the first 2 are 24 oz. I love that this is a little smaller for the kids and it's a great color!

Top tier bottle. It keeps my water cool for traveling in this humid weather.

Love my new Ninja Thirsti travel bottle. Just been on a trip and it stayed cold for two days. Easy to drink out of and to clean.. will be using it lots.

Best bottle I've ever had, I drink sparkling water because I hate still water and this bottle keeps the carbonation and cold all day. The handle is perfect when I am carrying grocery bags unlike the others with side handles and your drink spills out. Ninja does it again.... thank you.

Bought 4 of them recently. Love them! I bought 2 (18 Oz for my grandsons) and 2 (24 oz for ourselves/guests).