When Blake Mycoskie created the game-changing buy-one-give-one business model for TOMS shoes, it spawned a slate of welcomed copycats. Running a company with a social mission, however, requires passion and a water-tight business model. In this episode, Mycoskie meets two brothers who started their own clothing company where all profits go towards blindness research.

Three and a Half Degrees is an original podcast from Facebook. Follow along on Instagram and visit facebook.com/ThreeAndAHalfDegrees to learn more.