The Reformation Katarin Dress features an A-line silhouette, straight neckline, and dreamy eyelet details. The Reformation Katarin Dress features an A-line silhouette, straight neckline, and dreamy eyelet details. Founded in 2009, Reformation is a revolutionary lifestyle brand combining stylish, vintage-inspired designs with sustainable practices. With each limited-edition collection, the LA-based brand empowers individuals who want to look beautiful and live sustainably.