That constitutes the Breeching rig.
"Camp and Trail"
Stewart Edward White
In the harness of society they are Breeching-straps, good for nothing but to hold back.
"Around The Tea-Table"
T. De Witt Talmage
It was terrible for what it was, and terrible for what it suggested, if ever that poor dull beast of labor took the bit permanently into its teeth, or, worse yet, hung back in the Breeching and inexorably balked.
"Roman Holidays and Others"
W. D. Howells