SILVERDALE Sunglasses by Blackfin. Color: Black/Glossy Black, White/Silver, Dark Brown/Silver, Black/Silver, Size: 50-22-145. Elevating sun protection to an art form, Blackfin's SILVERDALE sunglasses offer a perfect fusion of style and functionality. These shades are designed for the fashion-forward individual who refuses to compromise on eye care. The SILVERDALE sunglasses model showcases Blackfin's expertise in creating eyewear that not only shields the eyes from harmful rays but also enhances the wearer's overall look. Whether lounging by the pool or navigating city streets, these sunglasses provide a touch of glamour to any summer ensemble.