Polo Ralph Lauren - 4D-Flex Lux Cotton Blend Short Sleeve Undershirt Crews 3-Pack. Color 3 Polo Black. On sale for $49.50. MSRP $54.50.. 5.0 out of 5 starsAdd to favorites. 0 people have favorited thisBrand NamePolo Ralph LaurenProduct Name4D-Flex Lux Cotton Blend Short Sleeve Undershirt Crews 3-PackGenderMen'sColor3 Polo BlackPrice$49.50MSRP: $54.50Rating5Rated 5 stars out of 5(6)