are these leakproof?
916189
Yes, just the same as a metal lid on a jar. I wouldn't say it's airtight, but it does not spill.
1731771
I have to say yes. While I haven't put any liquid in mine, the truly secure way the lids fit would indicate a leak proof seal. The lids will be very tight, almost too tight the first time. I them in warm water to soften and have had an easier time since. Lids are still very tight, but that's how I want them.
1095248
No. They do not leak sound. I have use them around people who insists they cannot hear anything. I hope this answer helps you.
1107226
I have had these for going on two months and have not had a single leak. I use them for our two little girls almost daily!
1096957
I haven't had anything leak through when using them... They hold a lot more than you think they would.
126514
Nope, I haven't encountered any trouble with leakage and I've been using these water bottles for years. I throw them in my bag all the time. The black caps have rubber rings on them that block any water from seeping out.
827991
I would say they are. Have two of these and commonly leave them laying on the side while traveling in passenger seat and in my lunch box haven't had a leak yet
1951816
Yes they are leak proof. I bought mine in the Container store and it is labeled leakproof on their shelf. The store sells the 2 oz size for $1.95. I use it to carry my oily lite salad dressing to the restaurant with me and it has never leaked.
320016
They do not leak dry goods if closed properly but in terms of being airtight no they are not.There is no seal for that.
101850
I have not had any problems with leaks on the connections. They have worked great for me.
341014
yes they are reusable and refillable. I have not had any leakage problem so far.
81089
I have found them to be mostly leak proof. On occasion I have overfilled the soup container. When I do that there is a bit of soup in the bottom of the warming can. It is a case of operator error.
720026
Yes they are as long as you have a secure latch. If the latch isn't locked there is a chance of leaking. I placed 15 pounds of weight in the box and submerged it over night in a tub sitting upright and no leaks. Hope this helps. The other answer about the handle is very true it is completely water tight.
1794747
I never had an issue with them leaking and I used them everyday for six months. The only problem would be if they are overly full then frozen, the top won't stay on then. Just don't fill to the very top.
129413
I don't actually know for sure,but I do believe they are air tight and leakproof because the seal is very tightaround the dish. Just make sure when you wash the seal,to let it air dry completely,or stretch the seal outward towards you to wipe clean&dry.; I had an experience where I didn't wipe dry the seal and had to throw it out becauseit turned black. But I do think they are good and air tight and leak proof. Good luck,and I hope this has helped you.
1835086
I have not had any problems with them yet. I even put coconut oil in one of them with a lid and keep it in my swim bag. It has not leaked yet.
320605
I'm not sure if there is a waterproof layer as such but I have never had one leak. I like these best for overnight.