He pronates (rolls inwards) like anything when he walks. When he was little he always had new Clarks but the last year he's spent 99% barefoot (it's the subtropics here) or in gumboots. His feet look a little flat but to my inexperienced eye it seems to be that his feet are still covered in baby fat - the arches are high enough on top, it's just the pronounced rolling in that I wonder if I should act on. Any clues, anyone?