Backpack PBR 3D Unity Asset Store Briefcase Package 11 Assets 3D Props Unity Asset Store Backpacks UnityXpressions Backpack Stacking Modeling Unity Asset Store Unity asset store Men's Unity Backpack Large in Black navy Balenciaga US. Unity Backpack by Balenciaga, top handle, adjustable shoulder straps, front flap and buckle closure, two zippered pockets for closure on side panels, iconic contrasting brand monogram on front flap, zippered slit pocket on flap.