Jessica Alba just gave Us a masterclass in effortless power dressing. She was recently spotted at the U.S. Open, wearing a chic navy suit set that screamed 'New York City rich mom.' While her designer set is a total splurge, we found a $57 version on Amazon that channels the same luxe vibe. For the tennis match, the Honest Beauty founder leaned into sporty-chic sophistication, pairing a navy Ralph Lauren sleeveless vest with matching wide-leg pants, platform sneakers and cat eye sunglasses.