SILVERDALE Eyeglasses by Blackfin. Color: Dark Brown/Silver, White/Silver, Black/Glossy Black, Size: 50-22-145. The SILVERDALE eyeglasses from Blackfin evoke images of serene lakeside communities, bringing a touch of tranquility to the wearer's appearance. These frames are crafted for those who appreciate understated luxury and prefer their eyewear to whisper rather than shout. Blackfin's attention to ergonomics shines through in the SILVERDALE model, ensuring that style never comes at the expense of comfort. These glasses are perfect for the discerning individual who values quality and sophistication in equal measure.