I've always taken my son to a specialist kids' shoe shop for his school shoes. He's now a size 41 EU (7 or 8 UK?) and their stock stops at size 40. Where are you meant to get good school shoes for a boy who still plays on climbing frames and up trees but has adult-sized feet? He's also like the princess and the pea with any little bumps in the lining or insoles so we need a selection!