RingflipToday is officially the hottest day of the year so far, so what better reason to start talking serious Summer footwear. As I mentioned the other day, the 'formal flip-flop' - a compromise between a strappy sandal and a casual toe-post - is the one shoe you won't be able to live without in a few months time. These Grecian 'Athens' sandals from Marc Fisher are a good mid-price offering in classic white or shiny pewter for $79.