August 21st saw the beginning of the 2018 US Open, which means two-and-a-half weeks of grunting, slamming, running and sweat dripping all over perfectly-kept clay courts. But the players and the bobbing-heads of the audience are not the only attendees of the event— several major brands make themselves known at the US Open, too. Here’s our roundup of the top fifteen brands getting their tennis on.