Recent years have seen all kinds of major progress in outdoor sports equipment, from maximalist running shoes to electric bikes to crazy-lightweight camping gear. But the most important breakthroughs of all have been in the design and manufacturing of sports bras. New research and technologies have paved the way for an advanced class of support systems that are comfortable, look good, and fit a wider variety of bodies. In this episode, we talk to Outside associate editor Ariella Gintzler about her feature report on the state of the sports bra, then take a look back at the game-changing invention that started it all.