anything that can be wrapped around the back to provide back support or relieve back pain
backwrap in American English
(ˈbækˌræp)
noun
an article of clothing, as a dress, that overlaps and fastens in the back
Word origin
[1950–55; back1 + wrap]This word is first recorded in the period 1950–55. Other words that entered Englishat around the same time include: International Gothic, conflict of interest, drip-dry, point spread, speech recognition