Jessica Alba styled up a sleek take on casual wear with a few luxe details while running errands in LA. Opting for all black on top, she layers a loose tee with a fitted blazer ($110) and scarf, then adds a pair of perfect-fit J Brand denim ($200). Her standout finish? A gorgeous Prada Madras Flap Bag ($2,650) and the label's now-famous Spring '11 striped platforms. Click the items above to shop the same polished-cool.
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