Polo Ralph Lauren Big Man Stretch Classic Fit Crews - 3 Pack (RWXCP3). The Polo Ralph Lauren Big Man Stretch Classic Fit Crews - 3 Pack RWXCP3 is a cotton-blend, round neck undershirt with three tees in a multipack. Polo Ralph Lauren's Big Man Stretch Classic Fit Crews - 3 Pack is made of cotton/polyester/spandex.