Prada Linea Rossa - The bestseller Flex Hinge technology returns with performance-driven models that magnify comfort and style in both metal and nylon fibre. For a non-stop lifestyle filled with adrenaline chasing, Prada Linea Rossa is the perfect teammate. This latest sun style with bold photochromatic lens options has improved comfort for a sporty man. Metal rectangle shape with Flex Hinge technology and rubber details on the temples for added comfort, innovative hydrophobic and iconic red striped logo. Two-level temples 3D effect with injected temple tips and rubber inner part.Category 3. General purpose sunglasses. High protection against sunglare, good UV protection, not suitable for driving at twilight, at night or under dull light.