Jamie's old slippers have had to be stood down (so to speak).
His old Postman Pat and Jess size sevens are still big enough for him. But sadly they're falling to bits and their replacement was becoming ever-inevitable.
Given how much he loves them, we would have persevered for just a teeny bit longer had it not been for a particularly harrowing incident during last week's visit to the Children's A&E Ward of the Leeds General Infirmary.
You might naturally think that the worst point of our late-night trip was when the assembled doctors advised that Jamie would have to have a chest x-ray and might have to stay overnight, such was their concern for our boy.
But for me, it wasn't.
It was that horrible, awful, gut-wrenching, terrible instant when everything seemed to stop and all I wanted was for the Whites to be swallowed up.
Yes, it was the moment - at around 11.15pm - when the big nurse (there's always a big nurse) removed one of his now decommissioned slippers and, after a short pause, announced loudly to the room full of medical types : "Oh, he's got smelly feet!"
Hopefully Jamie will now be happy - and considerably more fragrant - in his size eight Bob the Builders.