Here is a side-by-side that compares a 3X Beaver and a 4X Beaver for a 60s/70s Stetson Revenger. All variables (e.g., model, vintage, color, size, and condition) are the same — the only apparent difference is the X designation.
See the attached photos for a visual comparison but in summary the 4X felt is a bit more supple and deeper/richer in color. The 4X liner has piping and the 3X does not. There is a $35 price tag inside the sweat on the 4X. Unfortunately there is no such tag on the 3X but it is a step down so I would guess a $25 hat.
See the attached photos for a visual comparison but in summary the 4X felt is a bit more supple and deeper/richer in color. The 4X liner has piping and the 3X does not. There is a $35 price tag inside the sweat on the 4X. Unfortunately there is no such tag on the 3X but it is a step down so I would guess a $25 hat.