Men in cardigans are making a comeback. Leading retailers have reported a staggering 1000% increase in sales of men鈥檚 cardigans over the past year. Everyone, it seems, from David Beckham to David Hockney is happy to button up but what has made them so popular again, and can they ever really shake off their grandad and slippers image? Jess Cartner-Morley, fashion editor of The Guardian, and Guy Browning, writer and stand up comedian, debate whether or not the male and the cardigan really are the perfect twin-set.