Suits...
Sacks...
Slacks...
Overcoats...
A 'swelled' (5/16 top stitched) edge?
How narrow the span & how high the gorge?
How Green was my Ivy...
3 to 3.25 inches
It's a narrow width, but it works proportionally (for me) with ties that are slightly wider or narrower. Swelled edges only on sportcoats/blazers and certain suit jackets, e.g. poplin, gabardine, and maybe sharkskin.
Again, these are just my preferences.
4"-I have broad shoulders. High gorge.