With the onSide air? Convertible Car Seat by Safety 1st, you can keep your child rear-facing all the way up to 40 pounds! The car seat features our advanced Air Protecttechnology for better protection around the head, where it’s needed most.

• Air Protect Advanced Side Impact Protection: shields head and immediately reduces side impact forces through the precise release of air.
• Rear-facing car seat from 5-40 pounds and 19-40 inches
• Forward-facing car seat from 22-40 pounds and 34-43 inches
• 4 harness heights and 3 buckle locations give growing child a better fit