MB-590S-97Q The innovative styling of these striking dark green acetate pantos sunglasses by MONTBLANC makes a powerful statement about the man and women who wears them. MB590 sunglasses are characterized by the lightness of their frames and trendy round pantos lines. The discreet Montblanc Signature on the temples adds an urban touch to the progressive shape. This premium quality style is made in Italy. Lenses by Zeiss.