pin-striper
/ˈpɪnstrʌɪpə/originally and chiefly US informal
noun
1A pinstripe suit or dress.
2A person who wears pinstriped clothing; specifically (a) a player in the New York Yankees baseball team; (b) a businessman or businesswoman, especially one belonging a prominent corporate company.
Origin
1940s; earliest use found in The Portland Press Herald. From pinstripe + -er.