Black stretch-wool lapel-stripe double-breasted blazer from STELLA MCCARTNEY featuring stripe detailing, notched lapels, jetted chest pocket, long sleeves, buttoned cuffs, double breasted button fastening, two front welt pockets and full lining. POSITIVELY CONSCIOUS: Weâve joined forces with ethical agency Good On You to give you the power to choose positively. This piece is from a brand that scores well on their key criteria..