Is it true that you have to open up the straw and put in a valve every time you want it not to leak when out?
1138837
We only ever use the straw valve and the straw, but I only give my daughter water in these so I don't worry too much about leaking. They will leak out if tipped upside down, but I still really love these sippy cups and we never leave the house without one.
1138838
To be truly leak free, yes. I generally only fill this wonderful sippy half way and then when tipped on its side, it won't leak as the straw will be out of the liquid. We have also been using this great sippy without the straw lately and leaks are rare for us.
1138839
You're referring to the travel plug which is included with the cup. I haven't used the travel plug at all. My son drinks all day long, so I don't worry about it. If you leave the cup alone for a while, and it's full, the liquid will rise through the straw and may leak onto the table/floor, etc. whenever I see that happening, I sip from his cup and it's a non-issue.
1429603
No there is a hole in the top where the straw goes. I think "leakproof" refers to the seal around the edge of the jar, not the entire lid.
258990
Although I always use the straw with it you could definitely use it without one as well. The spout has a sliding plastic cover that does not seal liquid it as well as some of the other cups if turned on it's side or upside down it is sure to leak out. For that reason I always use the straw and keep it upright at all times. If you have a hot beverage in it, I don't know how you would use the straw to drink without scolding yourself, so it was designed to be used both ways. Hope this helps.
36031
You have to unscrew the lid, I prefer it this way so it doesn't leak once it's closed.
162776
I had a problem once or twice with leaking but soon discovered that the lid has to be seated properly before you twist it tight. I start with the opening in the lid opposite the handle on the cup - push it down until you hear a gentle click. Then twist it tight. If I do that, I have no problem.
1009987
You can drink out of it like a sippy cup, no straw needed, but it is not leakproof. It helps in the spilling amount, more so with the straw.
561716
The tighter you screw the lid, the more likely the liquid will come back up through the straw. It's possible to screw the lid on just tight enough that it doesn't leak but not so tight that it comes back up through the straw.
1221415
You can't drink out of this particular water bottle without making contact with the built-in straw. You have to bite down on it to get the water to flow through. Hope that helps!
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.
1545354
Mine leak when the straw is down whenever the top part is lower than the rest of the bottle.
1700875
Haven't knocked mine over "yet" so I filled it with water, put the straw in the lid and turned it on its side to test it. Water came out of the minimal area around the straw. A rubber gasket holds the lid on very tightly, but there is no gasket around the straw area. Water will leak at that point only. I love this tumbler and use it as much as possible.
2053347
No, only a hole to drink from. But I had same thermos for 20+ years before the lid started to leak so if they are made even half as well you'll get plenty of use out of it. But no hole for a straw!!
1545358
Yes, my first one leaked so I bought another and the second one leaks too. I may return it, or just use them in the car where they will remain right-side up all the time. Also, even when upright if the mouthpiece is open then warming air in the bottle will push a LOT of water up and out of the straw and all over your cupholder area. So if you use it in the car make sure to close it. I'd never carry one of these in a backpack. Water does really taste better though, so I'll accept the limited usefulness.
726911
No. The opening is small and has a sprng loaded valve which stays normally closed.
2200624
It should not leak. Mine does not. But it is, in my opinion, not a great idea to keep it pressurized all the time. Maybe a small valve at the handle would help.
1381515
No, I have never had a problem with it leaking. Try to keep it upright. Make sure the straw is down.
381778
The straw lid does leak. It is really designed to be upright. It's the one downside.