This is an authentic MARC JACOBS Grained Calfskin The XL Sack Bag in White. This oversized shoulder bag is crafted of grained calfskin leather in white with an embossed "The Sack Bag, Marc Jacobs" on the front. The bag features an incorporated top strap and a magnetic top that opens to a white leather interior with a leather patch pocket and an attached fabric zippered pouch. Follow this item for alerts. Marc Jacobs is a registered trademark of Marc Jacobs. FASHIONPHILE is not affiliated with Marc Jacobs.