Every autumn, like clockwork, there emerges a new It-shoe. For the last couple of years it’s probably been some variation on the Adidas Samba (when will everyone get tired of that trainer? Probably never, let’s be honest). But there have been some other significant contenders more recently. The Clarks Originals Wallabees. The eternal loafer. The classic Y2K Ugg boot. And now, we have a new aspirant in town: the boat shoe, which I wasn’t able to escape this weekend on the leaf-strewn streets of Peckham, Dalston and Soho in London.