Additional information: Cosatto come and go isofix group 0+/1 car seat the easy-access on-the-go hero. This clever extended rear facing car seat lasts from birth to around 4 years old (18kg). Its packed full of safety tech for maximum in-car peace of mind and the easy-access rotation feature makes life on-the-go a breeze. Extended rear facing (erf). Come and go is suitable from birth up to maximum weight of 18kg. It fits rear facing up to 18kg, allowing your child to face rear longer for safety around 4 years old. Come and go can also forward face from 9kg up to 18kg. Why is erf recommended? In a front on collision rear facing seats distribute force across a much larger area of the back so there’s less pressure on the delicate head, neck and spine. easy access rotation. The seat can be rotated to side facing for easy access from a car door. No more stretching and leaning in when lifting baby out or doing up the harness. Come and go then locks into position either forward or rear facing when you’re on the move.