The JIM suit was invented in 1969 by Mike Humphrey and Mike Borrow, partners in the English firm Underwater Marine Equipment Ltd (UMEL), assisted by Joseph Salim Peress. JIM is named after Jim Jarrett, Tritonia suit diver and Lusitania explorer.
World War I trench coat: Based on heavy serge coats this coat was modified in world war one to include straps, D-rings, and epaulettes. It was used in the trenches and hence called the trench coat. The trench coat was created by Thomas Burberry