My 7 year old is now over 135cm tall and no longer fits in his high backed booster. He can't get his shoulders in under the head rest and it will not go any higher.
I am aware that he legally no longer needs to be in a car seat, but for safety I would like to keep him in one.
In Ireland and Europe the advice is 150cm tall, so there must be high backed boosters that go to this height.
Does anyone have any recommendations of high backed boosters that go taller than 135cm, either isofix or not?
Many thanks in advance.