This is authentic Hugo Boss  Women's "Bemiu" Black 100% Silk Long Sleeve Blouse Top 

SKU: ST-9273

SKU2: 07.26.13.5

Model: 50518811 10228812 01 001

Material: 100% Silk 

Bust: 20.5"

Sleeves: 23"

Shoulders: 16.5"

Length: 23.5"