Is it 100% spillproof? If I shake it or turn it upside down will it leak or drip in any way?
2014347
This mug is 110% spill proof. I have thrown this mug in my back pack with hot coffee and not a drop anywhere. Great mug
2014348
100% spillproof! i've turned it upside down and shaked it to show my wife, she carries important files with her purse/computer bag. if you want i can post a video tonight pouring coffee and shaking it upside down. I know how important it is to invest in something that works and not get burned by it, no pun intended.
2014349
It has been completely spillproof for me. And as I mention in my review, it keeps coffee incredibly hot for hours!
2014350
I've dropped it, knocked it over... no leaks or drips as long as it is in the closed postion.Even when left in open, very little spillage.I love it!
2014351
Yes 100%. I sometimes find it on its side in my lunchbox and haven't even see a drop of beverage in the bag.
2014352
100%? I don't believe there is any product conceived and built by man that can claim 100% assurance. I'll tell you this though. I believe this Thermos product comes the closes. I've tried it and it did not leak. I wouldn't hold it over my laptop keyboard or paycheck to test it...but if it turned over in my lap while driving I know I'll be protected! Also I'm sure over time the o-ring will deteriorate and at some point start to fail. At less then 15 clams this is a no brain'er. Go head and buy one...you'll be happy. Watch out though the beverage stays HOT!
2014353
100% spill proof! I carry this around in my backpack at school all day. Once I tipped it and it rolled down to the front of an auditorium without spilling a drop.
718344
If you shook it side-to-side it might be okay. If you shake it up and down it might leak because there's a little notch where the neck of the spout meets the collar of the bottle. This notch allows any dribbles to drip back into the body of the container. That said, it's pretty big so I imagine if you made dressing it wouldn't fill more than halfway. Then you could shake side-to-side without the dressing reaching that notch.
1476861
No as long as the lid is snapped on tight it does not spill. If the lid is a little ajar, it will dribble a little. So make sure it's snapped on and that should fix the problem.
1412647
It is perfectly leakproof. I threw mine in my bag for months with not a drop ever spilling.
1450757
I filled the tumbler up to the top with water and laid it on its side. The rubber has two holes in the top, one is about 1/8" by 3/8" (which is where you drink from) and the other is a brad nail size hole that lets air in to displace the fluid you are drinking. Needless to say, it leaked. If you dump it over on your desk and pick it up quickly not that much water leaks out. Spill-Proof, NOT. Spill-resistant, somewhat as compared to a regular cup.
878753
yeah if you shake them up side down they will leak but my kids dont shake there cups upside down so i didnt see that as an issue for me. but any sippy cup will do that. there really is no such thing as a 100 percent free leak cup i wish there was.
1799372
As long as you lock the top switch, it's completely leakproof. I fill this with coffee every morning and throw it in my purse - many times it's upside down. Never leaks even a drop.
1251589
I have had it on it side and it has never leaked. But upside down I would not trust
577861
No. It's a twist off top. I've never had one spill or leak, but I can see how it's be possible.
2135859
I have tried turning my cup upside down only to see if it would leak. It does not leak, but the cap does fill up with the liquid so opening after turning the cup upside down becomes tricky or even dangerous if the tea is very hot. As for staining, it depends on what sort of tea you drink on the regular. So far, mine has not stained but I rinse it after each use. I think this purcahse was very worth it. I have been looking for a travel mug just for tea for many years and this is the first one I have had that I would recommend.
2242644
If you hold it upside down and shake it a lot it will leak, but we've had no problems with normal usage. If it falls over nothing comes out. You may get a drip or two if you hold it upside for an extended period of time, but I don't know for sure. We haven't had any problems with normal day to day usage and we've got 3 kids (age range of almost 2 to almost 6) and they each have one.
1598420
We haven't had any problems with leaking if the lid is on right. And if you are sure that the rubber little sip lid is closed all the way down. But, we don't usually put it in a bag because some of the reviews said theirs leaked all over. It has been upside down quite a few times though and never leaked. but for some reason this particular bottle, and only this particular pink one (we have a few), has an issue with the lid going on straight. I have to check it every time we use it to make sure it's on right and it often times takes 2 times of screwing it on before its on right. But that's not a big ideal. Overall a good bottle. We haven't had any problems with leaking if the lid is on right. And if you are sure that the rubber little sip lid is closed all the way down. But, we don't usually put it in a bag because some of the reviews said theirs leaked all over. It has been upside down quite a few times though and never leaked. but for some reason this particular bottle, and only this particular pink one (we have a few), has an issue with the lid going on straight. I have to check it every time we use it to make sure it's on right and it often times takes 2 times of screwing it on before its on right. But that's... » Read More We haven't had any problems with leaking if the lid is on right. And if you are sure that the rubber little sip lid is closed all the way down. But, we don't usually put it in a bag because some of the reviews said theirs leaked all over. It has been upside down quite a few times though and never leaked. but for some reason this particular bottle, and only this particular pink one (we have a few), has an issue with the lid going on straight. I have to check it every time we use it to make sure it's on right and it often times takes 2 times of screwing it on before its on right. But that's not a big ideal. Overall a good bottle. « Show Less
749440
Mine has never leaked, I don't shake it, but it does get thrown on my car seat, been dropped a few times etc and no leaking. I have had water get trapped in the lid, and when you take the lid off the water leaks out of it.
263149
I just held it upside down and it did leak. But the lid has bite marks in it from my kids... I bet it didn't do that until the bite marks.
1982888
I have held mine upside down without any leaking. If you manage to somehow press the button while turning it upside down, it will pour out.
1043982
I have only had mine for a few weeks. It does not leak. However, if over-filled, it will easily spill when walking outside with it. I find it can only be filled about 3/4 full.
1639760
Yes, I was able to shake the container to remix my juice when I removed it from the fridge. To be safe I place my thumb on the cover as I shake, but it did not leak when I shook it fairly vigorously. The lid has a dial to tighten and loosen the seal, so turn it as far as you can to get the tightest seal, and it will not leak when you shake it. I would recommend washing the lid by hand to keep the seal from deteriorating in the dish washer.