This slim-fit brushed cotton and leather jacket by Emporio Armani is perfect for throwing over a t-shirt and jeans.
Solid black brushed cotton fabric with lambskin leather sleeves and yoke.  Mid weight.  100% leather; 100% cotton.

Tagged a Large; fits a slim US Medium.  Actual measurements:

Chest - 20.5" underarm to underarm
Shoulders - 18" across seam-to-seam
Sleeves - 26.5" from shoulder seam to cuff
Waist - 19.5" across
Length - 26" from bottom of collar

This has been worn a handful of times, in excellent condition throughout.  No flaws to note.  Simply too slim for me.