The Reformation Eugenie Slingback Heels exude vintage charm with their elegant slingback design, open snip toe, and skinny heel. The Reformation Eugenie Slingback Heels exude vintage charm with their elegant slingback design, open snip toe, and skinny heel. 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.