Men's Unity Backpack Large in Black navy Balenciaga ZW Men's Unity Backpack Large in Black navy Balenciaga US Backpack Stacking 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.