This is an SAINT LAURENT Grain De Poudre Textured Mixed Matelasse Triquilt Medium Monogram Monochrome Satchel in Black. This shoulder bag is crafted of black-grained leather with chevron, linear, and diamond quilting. It features a large exterior flat pocket, black chain-link shoulder straps with leather shoulder pads, and an envelope-style flap with a black YSL monogram closure. This opens with a magnetic snap to a black fabric interior with a patch pocket.