The Reformation Britt Ballet Flats feature a stylish mesh design that enhances breathability, ideal for warmer weather. The Reformation Britt Ballet Flats feature a stylish mesh design that enhances breathability, ideal for warmer weather. 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.