Sexist. Designed for the male gaze not for comfort and support.
If it was body positive women rugby players would be shown wearing sports bras and sensible knickers that can hold a panty liner or towel. But then they'd also be shown with sensible sport wear over that.
But not like this..
https://www.msn.com/en-us/sports/other/nike-us-womens-olympic-uniforms-slammed-for-being-revealing-sexist/ar-BB1lJr5F