This is an authentic PROENZA SCHOULER Calfskin PS Courier Backpack in Black. This stylish satchel is crafted of lovely smooth calfskin leather in black. This stylish backpack has black leather shoulder straps, silver links and an extra long facing flap with hanging straps and a silver switch lock. This opens to a spacious black leather interior for all your daytime essentials, with the fashion forward style, only from Proenza Schouler! Follow this item for alerts. Proenza Schouler is a registered trademark of Proenza Schouler. FASHIONPHILE is not affiliated with Proenza Schouler.