Polo Ralph Lauren - 3-Pack 4D-Flex Cool Microfiber Boxer Briefs. Color 3 Polo Black. On sale for $49.26. MSRP $54.50.. 5.0 out of 5 starsBrand NamePolo Ralph LaurenProduct Name3-Pack 4D-Flex Cool Microfiber Boxer BriefsGenderMen'sColor3 Polo BlackPrice$49.26MSRP: $54.50