U.S. Polo Assn. Men's Track Pants The U.S. Polo Assn. brand (USPA) carries an extensive collection of classically styled, high quality, casual clothing. Browse through our site to find products including polo shirts, tees, denim, khakis and hoodies. Our versatile and stylish casual clothing will enable you to fully participate in an active and comfortable lifestyle.Our cotton knit lounge pant is perfect for relaxing around the house, taking a snooze, or tucking in for the night. Supremely comfortable, the hardest part of your day may be putting on regular clothes to leave the house.Cotton jersey knit.Covered elastic waistband.Small printed logo on left hip.Two side pockets.Elastic hem.