Alana fills in teaching for Will at the end of the episode. She wears a knee-length dress with a diamond pattern in black, white and gold and a matching belt.
Alana Bloom S1E1: Aperitif Scene 9
Tag lecture hall
Jack Crawford S1E1: Aperitif Scene 9
Jack looks for Will in the lecture hall at the end of this episode and finds Alana instead. During this scene, he wears a black suit with a brown button-down shirt and a black and light blue square-patterned tie.
Will Graham S1E1: Aperitif Scene 2
prop store 
jack’s office (no tie) 
tie detail 
end of day (no jacket)
[Prop Store Description]
This costume consists of a button-down shirt and sports coat. The Wind River brand shirt (size L) is made of red, white, and black plaid cotton and is labeled “1 DBL” at the inside of the collar. The coat (size 48) is made of a brown and black twill cotton blend. A tag in the inner breast pocket reads “Closed Tailored.”
[Notes]
The scene begins with Will’s lecture, where he wears the full suit and tie. Starting at the walk to Jack’s office, the tie has been removed, and remains in this state through the office conversation, the visit to the Nichols’ house, and the plane ride home. On the drive home when Will picks up Winston, he has removed the jacket. Finally, after washing Winston, he dresses down again to only an undershirt (see below).
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