Explore swim trunks and rash guards for boys from the likes of Kanu Surf, Shein, Adidas, Russell, Nike, etc. U.S. Polo Assn.. was launched in 1890 and, today, the brand sells internationally in countries like India, UK, France, and many others. Overall, U.S. Polo Assn. sells its products in 135 countries internationally. Yellow color is generated by adding green to the red color.