Viktor & Rolf - Batwing Silk Blouse

Feels like silk but no label. Purchased at sample sale so I cannot guarantee authenticity. Very unique piece, that can be worn front and back as buttons run down on both sides. Perfect as a beach coverup. Size S but fits oversized. Measurements (flat, with shirt buttoned). Since the shirt doesn’t have shoulders, measurements are arm hole to arm hole: 36” wide. Armhole width: 5” Length: 34”