Serengeti Sunglasses Carrara 8553 Silver Green Gradient Polarised Spy The frame is made from MU 53AS 26C09Z 52#HH The frame is made from lightweight and durable O Matter material Oakley Sunglasses Batwolf OO9101 68 Matte Black Prizm Grey Polarized Oakley Batwolf Sunglasses with a single sweeping lens and interchangeable icons these durable and lightweight stress resistant frames give superb eye protection with their wrapped frame geometry for medium to large faces with the iconic teardrop shaped lenses and double bridge Photochromic lenses are Serengeti's speciality and the lightweight lenses will darken or lighten exceptionally well in differing light conditions