Black leather City Heavy Grain leather backpack from MULBERRY featuring grained texture, silver-tone logo lettering, front zip-fastening pocket, single top handle, adjustable shoulder straps, front two-way zip fastening and main compartment. POSITIVELY CONSCIOUS: This Planet Conscious product is crafted with leather that has been produced in an audited and certified Leather Working Group (LWG) tannery — scored according to a three-tier system. The LWG assesses and certifies leather manufacturers that reduce the environmental impact of production..