De Bonne Facture Puppytooth Wool-Flannel Overshirt
From MR PORTER
When designing this overshirt, De Bonne Facture was inspired by styles found at the Saint Ouen flea market in Paris. Made from wool-flannel in a slightly loose fit, it has flap pockets on the chest and fastens with marbled horn buttons. Leave yours unbuttoned over a tee and chinos.