Is this spill-proof? Would I'd have to constantly hold it upright or can I manhandle it like a water bottle?
1246302
When the lid is on it is spill proof, if that's what you mean. But without the lid, it's just open on top.
35027
It is always open. I find it travels well, if you fill it to a max of 1/4" below the line of the top, I've had no spilling issues driving with it or carrying it around.
123022
Unfortunately I'm not sure.... I've never spilled anything in it, yet at least. I used it to hold work materials in my truck for work, so I cant speak to its leak-proof ability.
1417188
My husband had no problems with it and that was the only way he used it. He is very skinny, so that might make a difference! The directions clearly state that it shouldn't be filled past a certain level or the spill-proof feature can be negated. However, it has a large capacity.
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.
1793408
Mine does not spill at all once you put top cap on and make sure it is tight in place.
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.
1785997
The lid screws on tightly. The lip you drink out of snaps. I carry it around in a bag...even when its full and it has never spilled.
1984564
I never spilled anything on it but can't imagine it would hold up. The on off switch isn't the best and sometimes needs to be messed with. Other than that it works nicely.
1680172
Honest, this one doesn't spill, but it is not made for everyday use. It will not last long.
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.
585253
No, definitely not. Not only is it far too fragile to use like that, but the best it can do is prevent spillage due to a little sloshing.
970533
Not really. It still screws on tight and I have no problems with leaks or anything but when tight the hole in the lid is too close to the handle to make it easy to hold & drink out of. It doesn't bother me though because I use a big long straw to sip out of. Keeps my stuff cold all day & I love it.
1634100
You can shake it but hold the lid... mine leaks very little when I shake it..
1574164
Nope. Even if you spilled the liquid - it's clear and would wash out easily. Does get slippery, though!
2165057
You have to close the little flap that covers an opening for drinking from, otherwise; it will not spill. If flap is open, it might spill contents, but slowly enough to not be disastrous.
1801554
The pot locks with a simple catch you would need to be careful if travelling. Not really intended for that purpose. If upright it could be ok but have not tried.Tilting etc could cause spilling.