The Reformation Clementine Heeled Mules features a skinny heel, square peep toe, and a sweet bow detail. The Reformation Clementine Heeled Mules features a skinny heel, square peep toe, and a sweet bow detail. 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.