It's a French company, hence the size is T3 (BERING SIZE), which is French 42 and USA Large. HOWEVER, French sizing tends to be on a smaller size, I'd say the size is Medium by its measurements.
Very light, thin material with perforated Diamond design in front (I've tried to show it in 1st picture by making its reach black color appear more light)
Length - 22 1/2"
Pit-to-pit -16 3/4"
Sleves - 24 1/2"
Silk-55%
Wool-25%
Cashmere -20%