Paul Smith single-breasted check-pattern suit
From Farfetch
battleship grey wool twill weave check pattern Blazer: notched lapels long sleeves buttoned cuffs chest welt pocket two front flap pockets straight hem English rear vents multiple internal slip pockets full lining front button fastening Trousers: belt loops slip pockets to the sides two rear button-fastening jetted pockets straight leg concealed front button, hook and zip fastening