Can you use it like a sippy cup, or do does it only work with a straw? Is it leak-proof if you tip it up to drink from it?
1009986
Yes you can use it as a sippy cup. As far as being leak proof, it won't spill if you accidentally knock it over but, I don't suggest using it as a sippy cup for kids.
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.
1009988
This doesn't seal well enough to be used as a sippy; it leaks. If you put a rubber ring under it (the same kind you would use for canning) it works fine.
1346345
Yes, the straw is not water tight (for obvious reasons), so it will leak both around the straw and through the straw itself.
1087748
If the lid isn't on just right, the seal leaks very easily when the cup is tipped. It doesn't leak much upside down though.
1708492
I don't believe the lid would be conducive for use with a straw although I haven't tried it. There is only a small opening for the liquid to pass through. If you were able to squeeze a straw into it I don't think you would have very good results. Hope that helps.
1558023
It is not a flip top & it will leak if it is not upright. The hole straw or just drinking is open.
343955
I just tried it and yes it seems to work without the straw by tilting it :)
430798
The hole is very large you can drink out of it without a straw. I say just about any straw will fit. I don't understand the question about what side the hole is on. My daughter uses hers everyday.
2069721
This would work well for a child that age. You likely will have to assist with opening/closing the lid, but your little one should be able to use the straw well. So far this has been the best product we have found for not leaking.
2040611
Yes, it is. Also, FYI, I am unhappy with the small hole on top, plus space around the straw that allow leaking if it tips or falls over. I read others note this & thought it would not be a problem for me, but it has been. Currently looking for one like this (I like all the other features.) w/o holes on top.
524043
No. When the straw is in the closed position, a little gap opens up behind it so that even when closed, there is a small opening on the top of the bottle. If the bottle is on its side, it will leak. I have found the OXO kids twist water bottle to be more leak proof: OXO Tot Twist Lid Water Bottle for Big Kids (12 Oz) - Aqua
1450757
I filled the tumbler up to the top with water and laid it on its side. The rubber has two holes in the top, one is about 1/8" by 3/8" (which is where you drink from) and the other is a brad nail size hole that lets air in to displace the fluid you are drinking. Needless to say, it leaked. If you dump it over on your desk and pick it up quickly not that much water leaks out. Spill-Proof, NOT. Spill-resistant, somewhat as compared to a regular cup.
765305
Well, neither really. You push them on and there is a rubber ring that creates a seal. Does that make sense? It does create a nice tight seal that won't leak. However, on top you will either have the straw opening or the sipper side open. The plastic piece slides back and forth to expose one or the other, you can't have both sides closed. So, it's not going to leak on you as you drink, but you won't be able to throw these in a bag and go.
1662576
It wasn't for my kid. I had much more success with The First Years Take & Toss straw sippy cups. Since they're made of a a plastic that you can squeeze, you can squeeze the liquid up to the top of the straw so that my kids could get the idea of the straw. Then you squeeze a little bit less each time so they have to suck a little more. Both of my kids were drinking through a straw within 24 hours using this method.
1716647
The straw is part of the filter system. If you remove the filter/straw you can still drink from the bottle if you tip it.
753470
To reduce the likelihood of a leak, I use a long straw, if available. The cup does not come with anything to close the hole, so the cup should not be tilted.
1700877
No not really. It'll leak a little if knocked over when straw is in place. I take it on the go without the straw in place. You can either take the straw separate or leave it behind & just drink straight from the top with the lid off. If you buy this product you won't be disappointed, it's the most used thing in my kitchen. I LOVE IT!
1142433
Being able to use a regular soda straw in this is why I bought it. I like to take water (without having to use a recyclable bottle) or soda while in the car or to the park, etc. It keeps the ice and drink cold for several hours! But, as mentioned, it is not sealed this way. Take out straw and seal lid and it will not leak--I've turned it upside down many times. Then replace straw. Love it. I bought twice at Target but 6-7 local stores are out. Glad I found it on Amazon.