What to consider with collars
Band Height – How high the collar goes up the neck. Men with longer necks should consider collars with taller band height. Shorter necked men should select shorter band heights.
Tie Space – how close the top edges of the collar are when the top button is closed. Men with rounder or wider faces should select shirts with narrow tie spaces.
Tie Spread – the distance between collar points
Point Length – the length of the collar tips