![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.
![Sebastian Coe shrugs off concerns that Nike track spikes give unfair advantage | Athletics | The Guardian Sebastian Coe shrugs off concerns that Nike track spikes give unfair advantage | Athletics | The Guardian](https://i.guim.co.uk/img/media/352ee47384e9443776e7037f652a24a64119866c/4_754_1653_992/master/1653.jpg?width=1200&height=1200&quality=85&auto=format&fit=crop&s=22a17dd0df0d9cddb5122746d7cd4ddf)
Sebastian Coe shrugs off concerns that Nike track spikes give unfair advantage | Athletics | The Guardian
![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-760w,f_auto,q_auto:best/newscms/2016_52/1848936/gettyimages-592605928.jpg)
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-760w,f_auto,q_auto:best/newscms/2021_08/3452391/allyson-2x1.jpeg)