For days when a jumper is just too heavy, a hoodie isn't quite formal enough, and a jacket is going to be annoying to carry around with you, out steps Mr Cardigan, showing everyone there's no amount of wind-chill that could ruin your day. A mens cardigan sweater is perhaps the pinnacle of fashion. Feared by some, but embraced by those who know what a versatile and valuable piece it is to have in your repertoire. Pick a classic button-up design or opt for a mens zip up cardigan which feels a bit like a knitted bomber jacket. Aka also cool.