Protect your baby from every angle with the onBoard™35 Air 360 infant car seat. The onBoard Air 360 is the only infant car seat that features 360 Protect™ for 5 layers of proven safety. Rear-facing babies stay safely snug, starting at a tiny 4 pounds, with special insert pillows that give them a better fit. Removing the inserts, babies can ride comfortably in the safer rear-facing position up to 35 pounds.