Serengeti 'Corsa' GG6875 Sport Sunglasses. Serengeti 'Corse' sunglasses are designed with a sleek rectangular shape. Innovative sunglasses provide the ultimate in comfort and clarity. Sport sunglasses feature Serengeti's patented Spectral Control system. Exclusive photochromic lenses constantly adjust for superior definition and enhanced contrast. Integrated spring hinges assure a comfortable fit. Hardback protective case and soft cleaning cloth included.