The Reformation Leannah mini dress features a smocked bodice and puff sleeves, with a crew neckline and an A-line skirt for a flattering, feminine silhouette. The Reformation Leannah mini dress features a smocked bodice and puff sleeves, with a crew neckline and an A-line skirt for a flattering, feminine silhouette. 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.