VECTOR ONE Eyeglasses by Blackfin. Color: Army Dark Green, Gunmetal Gray, Size: 52-20-140. In the realm of precision optics, Blackfin's VECTOR ONE eyeglasses stand as a testament to the marriage of science and style. They are designed for individuals who move through the world with intention and clarity, always knowing their destination. The VECTOR ONE collection resonates with professionals who appreciate clean lines and efficient design in every aspect of their lives. As you wear these frames, you might find yourself feeling more focused and driven, as if the very essence of the vector concept has been incorporated into your daily perspective.