Commander Coughlin was at the Pentagon the day of the attacks almost 10 years ago and received a Meritorious Service Medal and Purple Heart for his actions in saving others on that day as well as for injuries he sustained.
Coats in distinct patterns and hues were in the news earlier when Michelle Obama chose a checked Thom Browne coat, plus magenta and purple ones for her daughters for Inauguration Day.
Each day Lavender, 57, wears the same purple jacket with red lapels to help clients pick him out of the crowd as he trades contracts for ten-year Treasury note futures.