This is an authentic PROENZA SCHOULER Calfskin Large PS Backpack in Black. This stylish backpack is crafted of luxuriously textured leather. The chic bag features adjustable shoulder straps with silver links, a top handle, and a full facing flap with a silver switch lock. This opens to a taupe gray leather interior with room for all of your daytime essentials with the forward fashion of Proenza Schouler. Follow this item for alerts. Proenza Schouler is a registered trademark of Proenza Schouler. FASHIONPHILE is not affiliated with Proenza Schouler.