NN07 Basso Cotton-Flannel Overshirt
From MR PORTER
NN07 makes "not-so-basic basics" – timeless, fuss-free staples for both work and play. Case in point, this 'Basso' overshirt is cut from a soft double-faced cotton-flannel sourced from the Beste mill in Italy. It's finished with snap fastenings and a single chest pocket.