Playtex Insulator Spill Proof Cups Review

The Playtex Insulator Spill Proof Cups are exactly what they say they are.  I have been using them for about a month now with my 20 month old daughter and she is pretty rough on cups, but hasn't found a way to destroy these yet.  They seem extremely durable, usually have cute designs on them, and are easy to clean.  I have thrown away so many sippy cups lately because I am tired of them leaking all over the house and furniture, but haven't had to get rid of these because they don't leak!  Because I have thrown away so many sippy cups, I have also been trying many different kinds and the Playtex ones are some of the best.  I have recently bought some sippy cups with straws and flaps that close over the top of the straw, but those have been driving me crazy with leaks and difficulty cleaning.  The Playtex Insulator Spill Proof Cups are easy to clean because you can put it in the dishwasher and there is only one removable part.  The spout that she drinks out of is hard so she can't bite through it and make a hole.