U.S. Polo Assn. Women's Timeless Racer Back One Piece Swimsuit Soak up the sun in this swim one piece from USPA! Added features include removable cups. Imported. U.S. Polo Assn. is more than just a brand – it’s an experience. When you purchase U.S. Polo Assn. you own a piece of the sport of polo. We are the official clothing brand of the United States Polo Association (USPA) — one of the oldest sports in the United States. This is a proud distinction that links our illustrious past to a bright future that you are an important part of. #LTKunder50