The Benson Knit Dress from Reformation is a sleeveless midi style with a boat neckline and ruching throughout. The Benson Knit Dress from Reformation is a sleeveless midi style with a boat neckline and ruching throughout. 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.