Polo Ralph Lauren - 3-Pack 4D-Flex Cool Microfiber Boxer Briefs. Color 3 Polo Black. On sale for $43.31. MSRP $49.50.. 5.0 out of 5 starsBrand NamePolo Ralph LaurenProduct Name3-Pack 4D-Flex Cool Microfiber Boxer BriefsColor3 Polo BlackPrice$43.31MSRP: $49.50