An infant car seat is the first seat a child will ever ride in. Infant car seats can accommodate a child from 5-22 lbs. and up to 29 in. in height. An infant should never be placed into an infant car seat when above 22 lbs. or 29 in. Infant car seats are car seats which feature a canopy which is adjustable or has the ability to rotate. A canopy will protect the car seat from the elements.