ZULU Ace Vacuum Insulated Stainless Steel Water Bottle with Chug Spout, Leak-Proof Locking Lid and Removable Base for School, Backpack, Sports, Gym, Travel

Beware of unscrewing the bottom cap
Edit 2023-06-05 I *have* to comment on the insulating capabilities of this bottle (and raise my 4-star rating to 5-stars).I usually don’t use ice because I’m not a big ice person. But yesterday was 90°F and very humid. We were outdoors setting up for, and attending, a grad party. So I filled the bottle with as much ice as I could fit & then topped off with tap water. It’s around 22-23 hours later AND THERE’S STILL ICE in my bottle. I’ve refilled the water at least 5 times since the original ice fill. This bottle is crazy good at keeping ice going. I kept running out of water to drink because the ice was just not melting.Also everyone who saw me add ice was fascinated that the bottom unscrewed for ice filling and cleaning. They all said that was an awesome feature, and several wanted to know where I got the bottle.Original review:I am what I call a “unconscious drinker” meaning I habitually grab for whatever drink is on my desk whenever I switch doing something. If I just wrote some code, and hit run, absentmindedly grab a bottle and drink. Fire off and email? Yep a drink without thinking about it. This wouldn’t be a problem except those drinks tended to be bottles of soft drinks.One day I received a plastic 750ml bottle from work that I loved. It was the perfect size for me, and fit under the water filter at work. Most importantly it didn’t have a straw or tiny sports bottle pull up spout. The opening was a flip-top with a wide spout that I could get a good chug from. I went from drinking soda all day to crushing my water intake each day.But plastic doesn’t last long. Especially when dropped a few too many times on the pavement.So I searched for another 750ml bottle I could love, and found this Zulu bottle. Overall I am happy with it, but there are some trade offs over my beloved company-branded-free-swag-bottle.Pros:750ml is a happy place for me on volume. Keeps me from having to refill as often, but isn’t so big that it’s heavy to carry around.The uniform diameter fits in my vehicle’s cupholder (old bottle did not).The push button flip top has a soft silicone spout the I can get good gulps of water.The outer coating is slightly textured making it a bit easier to hold while drinking.It keeps my water frosty cold until I have to refill.The stainless steel interior means no worry about plastic leeching stuff into my water.Trade-offs (Not Cons, just things different from my trusty old bottle)Since I drink absentmindedly I often pick up the bottle to find it’s empty. I got used to seeing the level in my clear plastic bottle. This meant it was easier to monitor consumed amounts and refill needed at a glance. This bottle cannot be see through so I often find it empty at inopportune times.The height is too tall for the filtered water dispenser at work. Wouldn’t be an issue except I’m 6’3″ and I have to stoop over & hold the bottle to fill it instead of just sitting it on the shelf and holding the button. Very minor, and only affects me.Cons:I loved the concept of the removable bottom for cleaning or adding larger ice chunks. It makes rinsing out the inside a breeze. But the cap’s thread is plastic and the bottle’s thread is steel. This makes cross threading fairly easy. And the o-ring seal is small. So I had issues with a leak for a while until I removed, and replaced, the bottom cap. I can see the possibility of overtightening the cap as well which would deform it, and could cause a leak.The flip-top’s button is very small in height. This makes it hard to activate if you don’t grip just right. For those of us with bigger hands that’s a problem. Also the flip top is a hard plastic. This will eventually get broken I’m sure. I’m sure this is to keep production costs down over having milled/cast metal tops (or it could be a planned obsolescence thing who knows). Hopefully replacement caps are available down the line.Overall the cons aren’t nearly enough for me to shy away from highly recommending the bottle.

Cool bottle!
Really cool water bottle. I LOVE how the bottom comes off. We’ll see how long the seal holds up. My only complaint is the button on the lid is a little cheap. If you don’t keep it locked it’ll open on you very easily.

I went on a girls trip this week and this was the water bottle I used. In 29°F my water stay cold all day. It was awesome I can’t recommend this enough! Plus the removable bottom makes it so easy to put ice into and to clean.

This is my 2nd Zulu ace bottle. First lasted 1+ year. Mouth piece became rough and brownish. Like the rubber deteriorated. This is my 2nd one. Worse! Silicon mouth piece disintegrates just after 7 months! And they don’t sell replacement caps. I really like this bottle. But quality is bad. Not sure what’s the size effects of using a mouthpiece with this rubber condition!

This bottle is perfect. Easy to clean, carry and fill. And it looks awesome too.