This luxury blazer from Isaia Napoli is tailored from breathable-woven fresco wool blend fabric that can be worn throughout most of the year.
Medium gray subtle-woven fresco wool and silk fabric.  Mid-light weight.  85% wool, 15% silk.

Labeled a European size 54R / US size 44R, but the sleeve length has been shortened.  Actual measurements:

Chest -  22.5"  underarm to underarm
Shoulders -  17.5"   across seam-to-seam
Sleeves -  23.5"   from shoulder seam to cuff
Waist -  21.5"   across
Length -  30"   from bottom of collar


Condition:  The fabric at the underarms is pilled from wearing under a fitted overcoat (see photos).  Not visible unless your arms are raised above your head.  The exterior fabric is otherwise in good condition.