Have we reached peak logomania ? Over the past few years we've seen the very best of branding shaved into heads at Fendi, logomarks splashed all over bags, bra-straps and T-shirts at Loewe, Dior and Gucci, and presidential campaign identities reworked at Balenciaga - and that's to say nothing of the branding bonanza that that house's artistic director Demna Gvasalia takes great pleasure in hosting with Vetements.