Don't call it a cardigan. Sure, it's knit and closes with buttons down the front, but this vintage-inspired style is more of a polo hybrid. Design details include welt pockets, smoked shell buttons and a material made from a fine Italian silk and cotton. Toss it on over a plain tee for an easy outfit upgrade. Or button it up and layer it under a coat for a shot of graphic style.
Silk and cotton full placket polo,
$268 by Todd Snyder