Crupper

Crupper goes under the top of the tail and helps to stabilize harness
Crupper attached to the back of a saddle

A crupper (/ˈkrʌpər/;[1] occ. spelled crouper[2]) is a piece of tack used on horses and other equids to keep a saddle, harness or other equipment from sliding forward.

  1. ^ "Crupper," Dictionary.com Web page accessed August 31, 2008
  2. ^ Elser, Smoke and Bill Brown (1980) Packin' in on horses and mules, Mountain Press Publishing Company, Missoula, Montana, USA. 158 pages.