Charcoal grey leather Belgrave messenger bag from MULBERRY featuring embossed logo to the front, single flat top handle, all-around zip fastening and adjustable shoulder strap. 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..