This is an authentic PROENZA SCHOULER Lambskin PS1 Backpack in Midnight. This stylish backpack is composed of fine blue leather. The pack has leather shoulder straps with gold adjustment hardware, two facing flap pockets with gold buckles and a cross over flap with a signature matte gold switch lock. This is an excellent backpack, ideal for everyday wear, 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.