Costume National is best known for its sleek, modern take on urban ready-to-wear. The label's loyal following of no-nonsense, minimal-inclined clients will have no trouble revamping their fall wardrobes with supple leather tops, slim pantsuits and satin copper blouses. To lighten the mood, they will turn to off-white suede jackets worn with leather skirts (skin on skin is an unbeatable combination), and cowl-neck sweaters. Of course, everyone needs a bit of spice once in a while. Not to worry—houndstooth-print red-and-black satin dresses, sheared fur sweaters and glittery black suits for evening should do the trick.