This bottle does not have a very good seal and glue will bubble and leak out when ...
345707
This bottle does not have a very good seal and glue will bubble and leak out when they are not in use.  They do not have a screw on lid, so if the glue is thick when you squeeze to get the glue out the lid comes off.  I would not purchase these again.
3615708
It's okay and can distill water but it does not get a good seal with the pan containing the water being distilled so some steam escapes into the air instead of being condensed in the hose.
1212023
ring (seal) came off when I opened
Bottle, impossible to put back on. It leaks it looks like seal was an after thought. I bought extra straws. Not worth hassel to send it back good customer but
3978226
The cap does not seal very well and the bottle started leaking. Though, the water filter seems to be working well. Just make sure that you don't tip the bottle over or it will leak like crazy.
2108226
I rarely write reviews, but this bottle is poorly designed:

it WILL spill on you: the seal between the cap and the bottle isn't tight, and you can see it when you tighten the bottle.
3882583
This is a great idea and I love having infused water.  But the quality of this bottle leaves something to be desired (especially for the $25 price tag).  I saw this bottle on Shark Tank, love the kid and his story and my husband bought it for me for mother's day.  However, the air flow isn't good causing it to bubble loudly when drinking.  The plastic is hard and would break if dropped, and the lid feels like it is going to break off.  There are many parts to this bottle and after being washed and put back together there is water left in the crevices which leak out when you drink from the bottle.  The mouth piece is hard to drink out of; you need to drink side ways because the lid will fall forward and when drinking sideways, water from the rim drips all over you.  It is also too small, with the fruit taking up space I can barely get 13oz of water in this bottle forcing me to refill 4-5x a day.  I love this idea and would like to see it transform into a better quality bottle.
3119421
lost the seal after a few days, would not buy again
538676
Got enough teflon tape to seal it, but the threads are quite loose and so I was getting lots of leaks. Got it sealed finally and is not leaking any more so.... it works, just not made very well.
834416
Not a 100% spill proof, lids still leaked even in the closed position!
4538108
The bottle starts leaking after a few uses. It got my bag and all my belongings wet. I made sure I have the lid tight and tried to use it again and it still leaks.
4514701
There's no real applicator and the glue doesn't come out of the top piece.  I end up pouring it out of the bottle and it gets everywhere.  I have resealed it multiple times and it stays good.
1817576
The self-seal doesn't necessarily hold all the time.  Make sure to store in a dry place otherwise, the glue will gradually loose its sticking ability.
2440941
This water proofer did the job and beaded off the water from my hiking boots, but the bottle was leaking when I received it.  It leaked again in my backpack, so now I have very little left, but the inside of my backpack is waterproofed!  Not really want I wanted...wouldn't probably buy it again, unless they change containers.
2539187
I purchased these bottles and one of them leaks due to a bad seal in the lid.  I can't figure out a way to fix it so I guess it is useless at this point in time.
948646
The sprout of the bottle chip easily and it leaks from time to time. Need to check the gasket!
4293378
I was very excited about the idea behind these bottles, I work long days and would love to have a water bottle that fits easily into a pocket or purse and is collapsible. It worked great the first few uses, but then the seal around the spigot got loose and it started leaking.
3869385
Not so greatly made the bottle its self is good thick glass and all but the tops are not so great the metal top just kinda flops back and forth between the glass and the plug holder if it wasn't there it would fall off  and there is a cheep looking thin tube inside of the bigger outside tube that i guess is to control the flow but it looks cheep and kinda goofy. I didn't return them but am not using them for what i got them for, instead they are bubble bath holders now and i went and got some for my intended use