Polo Ralph Lauren - 4-D Flex Max Flex Boxer Brief w/ Rib Side Panel 3 Pack. Color Charcoal Heather/Andover Heather/Polo Black. On sale for $34.65. MSRP $49.50.. 4.8 out of 5 stars+2 colors/patternsBrand NamePolo Ralph LaurenProduct Name4-D Flex Max Flex Boxer Brief w/ Rib Side Panel 3 PackColorCharcoal Heather/Andover Heather/Polo BlackPrice$34.65MSRP: $49.50Rating5Rated 5 stars out of 5(40)