clipped from: www.kidsflysafe.com   
The Old Way (A Car Seat) - The New Way (Cares)
Just carry a CARES in your pocket or purse, install it on the airplane seat in one minute, and turn any airplane seat into a safe airplane seat for your child!

CARES (“child aviation restraint system”) is the first and only FAA approved harness type child safety device;

CARES is an innovative restraint for kids 22-44 lbs that attaches directly to the back of the airplane seat and augments the regular seat belt;

CARES fits all size airplane seats and takes one minute to install!