i know i've posted this picture before, but when i went to the b-bag store yesterday, they didn't seem to know what i was talking about
...it's called "the shoulder" on this website:
http://ateliernaff.blogspot.com/2005/09/balenciaga-motorcycle-style-reference.html

http://ateliernaff.blogspot.com/2005/09/balenciaga-motorcycle-style-reference.html