This is a Bottega Veneta Intrecciato leather briefcase in green or dark color, with
         a zip fastening and a detachable shoulder strap. 
         Brand and style: it is a luxury bag from the Italian fashion house Bottega Veneta,
         featuring their signature "Intrecciato" weaving technique, which involves weaving
         leather strips together.
         Material: The bag is made of leather, possibly calfskin.