Backpacks & Bags 22+ Variations Props Unity Asset Store Bags Package 3D Props Unity Asset Store LEAKED GAME ASSETS Backpack Collection Balenciaga Medium Unity Backpack Black FARFETCH Backpack Stacking Unity Asset Store. 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.