The sweatshirt Kim (Rhea Seehorn) is wearing while sitting on the bed eating pie with Jimmy (Bob Odenkirk) is from the University of American Samoa, the school revealed in Season 1 as Jimmy's law school.
This episode was directed by Terry McDonough, who directed 3 episodes on Breaking Bad (2008). One of them is Better Call Saul (2009), the episode that introduces us to Saul Goodman (Bob Odenkirk).
The real-life name of the business used as the location for the auto upholstery shop is - interestingly enough - Walt's Top Shop.
The whole idea of squat cobbler was lifted directly from a viral video called Cake Farts in which a girl sits in a cake, bouncing up and down while farting.
The word "cobbler" (which is the title of this episode) means "varga" in Hungarian. Varga is Nacho's (Michael Mando) surname.