This is an authentic PROENZA SCHOULER Calfskin Double Sided PS Courier Bag in Black. This chic shoulder bag is beautifully crafted of pebbled calfskin leather in black. The shoulder bag features an adjustable leather shoulder strap with polished silver links, a full rear patch pocket, and a full facing flap with a polished silver switch lock closure. This opens to a green leather interior with a hanging zipper and patch pocket. This messenger bag has room for all of your daytime necessities with the forward fashion 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.