02_0000401_v1fThe boyfriend jacket popped up on designer runways last spring and has been on the fashion radar ever since. But this season the trend is everywhere, from the catwalks of Jil Sander, Jean Paul Gaultier, and Stella McCartney to contemporary collections by Jill Stuart and Rebecca Taylor. The key to this functional wardrobe addition is the fit: A boyfriend jacket should be slightly slouchy, not oversized and sloppy. At Sarah boutique, a good-looking version by Fillmore in pale gray will look perfect with a pair of favorite skinny jeans, over a sheath dress, or, for the more fashion forward, paired with cuffed shorts and a cool T-shirt. Fillmore stretch boyfriend blazer, $159 Sarah, 1067 S. Gaylord St., 303-482-2299