This is an authentic ALEXANDER WANG Lambskin Marti Backpack Bag in Washed Black with Iridescent Hardware. This stylish backpack is crafted of supple black lambskin leather. It features a leather crossbody strap, shoulder straps, two side zip pockets, an external center expansion zipper, and a cross over flap with straps,. This opens to a black nylon interior with a zipper pocket. Follow this item for alerts. Alexander Wang is a registered trademark of Alexander Wang. FASHIONPHILE is not affiliated with Alexander Wang.