Here are two different methods for specifying clothing size and shape. First, a Workman-like approach:
“Body measurement specifications for fit models as a factor in clothing size variation,” Jane E. Workman, Clothing and Textiles Research Journal, September 1991 vol. 10 no. 1, pp. 31-36.
Second, an American presidential approach, as lovingly described in words and video by blogger putthison:
In 1964, Lyndon Johnson needed pants, so he called the Haggar clothing company and asked for some. The call was recorded (like all White House calls at the time), and has since become the stuff of legend. Johnson’s anatomically specific directions to Mr. Haggar are some of the most intimate words we’ve ever heard from the mouth of a President.
[HT ABC News, the Washington Post, and investigator Vim Elroy]