![First, she took on Nike. Now Olympic track star Allyson Felix wants to end the maternal health crisis. First, she took on Nike. Now Olympic track star Allyson Felix wants to end the maternal health crisis.](https://media-cldnry.s-nbcnews.com/image/upload/newscms/2021_08/3452392/allyson-1x1.jpeg)
First, she took on Nike. Now Olympic track star Allyson Felix wants to end the maternal health crisis.
![First, she took on Nike. Now Olympic track star Allyson Felix wants to end the maternal health crisis. First, she took on Nike. Now Olympic track star Allyson Felix wants to end the maternal health crisis.](https://media-cldnry.s-nbcnews.com/image/upload/t_fit-1500w,f_auto,q_auto:best/newscms/2021_08/3452391/allyson-2x1.jpeg)
First, she took on Nike. Now Olympic track star Allyson Felix wants to end the maternal health crisis.
![Tokyo Olympics: Allyson Felix kept running, stood up to Nike and redefined what's possible for women in sports - CBSSports.com Tokyo Olympics: Allyson Felix kept running, stood up to Nike and redefined what's possible for women in sports - CBSSports.com](https://sportshub.cbsistatic.com/i/r/2021/08/06/6d377ff6-c931-4729-a712-6997cf4a3d42/thumbnail/640x360/d22f0570e35adc1582ab68ec98323438/3-felix-olympics.jpg)
Tokyo Olympics: Allyson Felix kept running, stood up to Nike and redefined what's possible for women in sports - CBSSports.com
![Allyson Felix, an Olympic medalist who split with Nike over maternity rights, signs with Athleta — Quartz at Work Allyson Felix, an Olympic medalist who split with Nike over maternity rights, signs with Athleta — Quartz at Work](https://cms.qz.com/wp-content/uploads/2019/07/AllysonFelixCamryn-e1564606762165.jpg?quality=75&strip=all&w=1600&h=900&crop=1)
Allyson Felix, an Olympic medalist who split with Nike over maternity rights, signs with Athleta — Quartz at Work
![First, she took on Nike. Now Olympic track star Allyson Felix wants to end the maternal health crisis. First, she took on Nike. Now Olympic track star Allyson Felix wants to end the maternal health crisis.](https://media-cldnry.s-nbcnews.com/image/upload/newscms/2021_08/3452394/hospital_allyson.jpeg)