The Reformation Prudence Ballet Flats, made from high-quality suede with a delicate nap, feature a stylish square toe. The Reformation Prudence Ballet Flats, made from high-quality suede with a delicate nap, feature a stylish square toe. 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.