This contest is over:( But you can still get your Doona car seat today. Want to learn more? Read the full review! We're giving away a Doona Infant Car Seat to one lucky winner! The Doona Car Seat is a total game changer, and is the perfect piece of baby gear for urban moms and dads! What is the Doona? It's a rear facing infant car seat that turns into a stroller in one simple step! Enter right here: