New York rich moms have a different type of confidence. Equal parts classy and polished, these ladies look effortlessly put-together at all times. Who knows when there will be a last-minute social club event on the calendar? Their secret to pulling it off is having loose, billowy sundresses in their closet, and these Amazon picks nail the look. Some of the comfiest, most expensive-looking New York-style dresses we've seen are hiding Amazon's Fashion hub, and are surprisingly all under $30.