The tagged size is 48R EU. This usually translates to about a 38R US but it fits a little full and could work for a trim 40R.
To ensure fit please consult the following measurements (taken using Ask Andy's guide):
Underarm to underarm: 20.25"
Waist: 19"
Shoulder: 18.65"
Sleeve: 25"
Length from the top of the collar: 32"
Length from the bottom of the collar: 30.25"
Two button, notched lapels, straight flapped pockets, functional surgeon's cuffs, *no* rear vent, unlined, laser-cut.
**The photo of Timothee isn't relevant to this listing aside from it being cool that the leather blazer is back in style; from an upcoming Scorsese project.**