The Mirror Palais Sonata Off-The-Shoulder Silk Midi Dress features a bias-cut design with a lace-trimmed neckline, a ballet-length skirt, and boning in the upper bodice for a flattering and structured fit. The Mirror Palais Sonata Off-The-Shoulder Silk Midi Dress features a bias-cut design with a lace-trimmed neckline, a ballet-length skirt, and boning in the upper bodice for a flattering and structured fit. Founded in 2019 by Marcelo Gaia after nearly a decade as a stylist, New York-based cult label Mirror Palais is known for its vintage-inspired silhouettes reimagined for the modern It girl.