The jane racing car seat gives you peace of mind an ergonomically designed seat that adapts to the changing needs of a growing child from birth to approximately 4 years 18 kg the shell has expanded polystyrene which is designed to absorb energy in the event of an accident this seat is particularly noteworthy for its deep reinforced head structure for optimum side impact protection and with an adjustable cushion filler providing maximum comfort for your newborn or growing child the s