Do they really exist? I really need to find some that don't leak and are dishwasher safe. My daughter (18 mo) likes to leave them around the house (laying down) and then they leak.
I use the nalgene ones from REI (they are BPA free). I have 7 of them and have used them for about a year and they do not leak. Occasionally, DD will shake some water out, but no milk leaks at all. They have a valve that you can take out to wash and put back in. I have a basket in the dishwasher for the valves, and the bottles and tops go right on the rack. I used several others before and hated them, the take and toss ones made a huge mess.
Oh, I forgot about the Nalgene ones that joebunny suggested. We have two of those and they're great. They really don't leak at all! They're a little more expensive than the playtex, but I think they're worth it!
Re: RP- Sippy cups that do not leak?
We've had great luck with the Playtex ones. They may leak a little when shaken, but they don't truly just pour out liquid.
hth!
Oh, I forgot about the Nalgene ones that joebunny suggested. We have two of those and they're great. They really don't leak at all! They're a little more expensive than the playtex, but I think they're worth it!
We have always used Playtex insulators and NEVER have had a leak. Some of our cups are almost 3 yrs. old and still don't leak.
Good luck with your search.
p.s. We can even turn ours upside down and shake hard and nothing will come out.