The couch shell is legal to bring in the US and to carry in checked baggage. There are signs in the airport, unfortunately, they are only going up to the security security level - a bit late. The reason they don't want the shell in your check in baggage is because it can be used as a weapon! Slip your hand into the shell, punch out and you can do a lot of damage to a person. How do I know - we had to give one up on our second visit and the security person told us. Fortunately, I live in Key West so we have plenty. Just wanted to add one from SXM!!!