Our current carseat (Graco Comfortsport) has what's called EPS safety foam, which essentially means it's lined with what looks like styrofoam. Tonight, in preparation for our trip tomorrow, I was cleaning out the car and decided to shake the disgusting layer of toddler debris out of the carseat. Taking off the cover, I discovered that a large section of the foam had cracked and then COMPLETELY BROKEN OFF.
Um, not exactly safety foam now, is it?
This is not a "don't buy the Graco Comfortsport" message. I don't know that this is a problem specific to them. I don't even know that our carseat is unsafe now, although I'm buying a new one first thing tomorrow morning anyway because I don't have time to find out before we leave to drive 500 miles. I'm just telling this story as a way to urge you to periodically give your carseats a good going over to make sure that pieces aren't about to fall off. It's never good to be surprised by these things.