This black and white Isabel Marant Étoile Leagaya double-breasted checked blazer is crafted from cotton and cut for a loose fit. Tailored with peak lapels, it has front button fastenings, a chest pocket and two front fold over pockets, long sleeves with padded shoulders and buttoned cuffs, and a vent at the rear. That's us checking 'find the perfect double-breasted blazer' off our list. Thanks, Isabel Marant Étoile.