This is an authentic PROENZA SCHOULER Suede PS1 Backpack in Black. This luxurious backpack is composed of black calf suede. The backpack has suede shoulder straps with black adjustment hardware, two facing flap pockets with black buckles, and a cross over flap with a signature black switch lock. Follow this item for alerts. Proenza Schouler is a registered trademark of Proenza Schouler. FASHIONPHILE is not affiliated with Proenza Schouler.