British world No.61 Heather Watson tweeted this photo of the apparel her sponsor New Balance prepared for her US Open appearance. The style is a revamped version of the outfit the 23-year-old wore early in the season, during her title run in Hobart, when her cooperation with the company was launched.
I can notice that the items at retail have less contrast than those in the photo Heather shared. In particular, the logo here is silver, while in Heather's photo it's bright yellow.