One doesn't attend the US Open just to watch tennis. One also goes to shop! This is where the sponsors pull out their big guns and set up elaborate shops to entice fans to spend a little money on the way to the stadium. The most impressive, of course, is Ralph Lauren. He has a "shop" complete with fixtures and outfitted salespeople.
All of his offerings are embellished with the giant Polo embroidery.
I bought this white nylon cap for $30. It's very sleek and different from the usual cotton baseball styles.
And with every purchase your receive the coveted plastic US Open Polo drawstring bag (subject of a NY Times article two years ago).