Posted by a reviewer on Amazon

Yes if it rips over it will but it’s a slow drip so even then it doesn’t bother me

Posted by a reviewer on Amazon

It’s fairly leak proof overall let’s be honest no cup is 100 leak proof but if the valve is wearing out it will drip sometimes

Posted by a reviewer on Amazon

But it requires one to suck extremely hard to get a small amount of water out

Posted by a reviewer on Amazon

I thought i’d try this and while it is leakproof the valve makes it really difficult to drink from

Posted by a reviewer on Amazon

My daughter was sucking and sucking and hardly any water would come out

Posted by a reviewer on Amazon

These have survived drops from the highchair rolls down the driveway and many dishwasher cycles

Posted by a reviewer on Amazon

Its certainly possible to buy cheaper water bottles but my experience is those dont hold up or work as well so they end up being wasted money and clutter up the cabinet

Posted by a reviewer on Amazon

And these are leak proof enough that i will actually let my greatgranddaughter have carbonated drinks in these only half full but with most others the carbonation caused leaks even at half full