Black Wool Collared Crop BlazerThis black wool cropped blazer by Yves Saint Laurent from the 1980s is all precision and poise, with sharply notched lapels, architectural seams, and a hem that hits just above the waist for maximum proportion play. Born of the decade when YSL power dressing reigned supreme, its the kind of jacket that could command a boardroomor a dance floor. Toss it over a slip dress, high waisted denim, or nothing at allits structure does the heavy lifting.