green suit
n.— «The private recruiters struggled at first when compared with their enlisted counterparts, whom they refer to as “green suits.”» —“Army Tries Private Pitch For Recruits” by Renae Merle in Lancaster, Pennsylvania Washington Post Sept. 5, 2006. (source: Double-Tongued Dictionary)
Green Suit – term for a body suit that provides warmth in cold weather, cool in hot weather, and light (especially to the front) in the dark. With a good green suit one need not heat an entire apartment in cold weather nor cool it in hot weather. The power and greenhouse gas savings are enormous.