Do these lids prevent leaking 100% or does some seepage occur?
1405145
From my experice it's pretty air, tight. It's got like a rubber piece that keeps it sealed tight or from popping open. I don't think I would throw it upside down in my backpack, but it's pretty leak proof I think.
1405146
As long as the lid is on all the way and the flip top is snapped down, there is no leakage.
1369068
the lids I have fit firmly in place and I'm not afraid that they would leak with fluids. I use one of mine for cucumbers with vinegar. have had it almost a year now with no problems. if they do leak you should be able to get them replaced, free of charge.
1520983
Yes, they lock in place and have had no problems with leaking. It really is a nice set of containers.
2277311
I have not had any issues with leaks. My wife hasn't had any issues neither and she uses hers for medicine, make up, lotion and other liquids. She also keeps some in her purse and they have never spilled. She carries large purses so these containers really get bounced around.
1289081
I have not had them leak as of yet. Just make sure you get the plastic roller insert in tightly.
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.
101850
I have not had any problems with leaks on the connections. They have worked great for me.
930621
I regularly shake things in my jars with these lids and I would say they DON'T leak about 95% of the time. Which is to say that every now and then there is some leakage - I think one of my lids is just "bigger" or sits "looser" than the others.
129275
I have used mine quite often and nothing has leaked. Make sure to snap the lid completely.
1737680
Mine never have probably never will. I just screw them on tight and ignore the seal zone. I like these ones because they don't leak as much as others I have tried
1722854
Yes, these containers do leak, they are not air tight. Great for non-liquid items however.
640915
Leaking has never personally happened with my set. Not ever, and I take a lot of differing things in my lunch. Maybe the other folks are overfilling their containers--maybe don't fill it up to the top? But no, in my experience they don't leak.
782118
The round ones have a tight lid and so they don't leak, but the rectangular ones don't close that tight and so they leak. On the first set I got, the small rectangular lid was way to loose and they sent me a new set. The lid on that one fitted a bit better but it is still not hermetic and leak. I had to go and test them after your question so now both you and me know! :)
720887
I have never had them leak and I've been using them for a year now. I've put fruit in them and the juice has never leaked. I own 3 sets of these containers and love them! Now that my son is getting bigger, I wish they made them in a bigger size.
483379
It depends. Some have a small plug in the bottom that may leak but others do not. I have taken the ones with plugs and just sealed them with silicon and never had a problem.
147228
I have five of these containers and have found that a couple will leak when on their side. It doesn't matter how much I tighten the lid, they will leak. It's not a serious problem for me as I can leave them upright.
782117
Yes, the lids seal up nicely. I just tried it out to confirm and water doesn't drip out while holding it sideways or upside down. The lids seal it up tight and no spills.