I hear that they are not safe to use because they go UNDER the baby, and can compress in a crash, making the straps too loose. Also that you have to mess with the straps a little to position it correctly is dangerous. Before I knew this, I used it with both my kids. Thankfully, we never got into an accident, so I don't know if something would have happened. They make similar things that just go over the seat, like, shower cap style, but if I were to have another baby, I'd just use blankets.
at 9:06 AM on Sep. 24, 2009