This black and white Saint Laurent Arceau wool blazer features a black and white striped weave, a notched lapel, a chest pocket, flap pockets, a button front opening, long sleeves with buttoned cuffs and a back vent. ‘The only good things about cool weather are Saint Laurent wool jackets and hot toddies.’ So the saying goes. And yes, we just made up the saying, but isn’t that how sayings start?