At the upcoming tournaments in Australia that are kicking off the 2018 tennis season, world No.19 Madison Keys is set to debut the Nike Air Zoom Vapor X shoes, a revamped version of Nike‘s flagship Vapor line that improves flexibility and comfort by combining the best features of running shoes and on-court innovation.

I put it on and I hit in it, it was like, ‘Yeah, these are great. I would love to wear these during matches,’ which isn’t always the case.