i used to wear H&M hoodies over the past years. in winter, they were an extra layer under my jackets to keep me warm. in summer i could slump them over my shoulder and wear them when it chilled up. the hood kept my head warm in winter and dry in rain.
perfect.
too bad they got too chunky after a while and with slimmer fitting jackets. there's always cashmere hoodies... though i do love the bulk those bigger hoodies add to my frame.
else.... i wouldn't say i have a linchpin. though i do love shirts (dress shirts, button downs, military, polos, anything with a collar really)