We’ve ordered one from Halfords. They do sizes suitable from 1 year based on the child’s head size etc! Decathlon also do them x
No advice but I've got to get one too. I've just bought my little boy a scooter for his second birthday x
I got the new for my 1st when he was about 2 I'm sure I got it for Amazon you measure the head for the right size. It covers more of the head to protect the brain I googled a lot to find the name of it so I would do that see what one offers more protection and that needs head measurement for correct size over age x