Ray-Ban RB3770 Sunglasses pair a narrow oval metal frame with crystal lenses for a polished, everyday sunglass option. The design focuses on refined shape and adjustable nose pads for a comfortable fit. Key attributes: Copper | Brown | Metal | Crystal lenses | Adjustable nose pads | Oval shape | Full-rim metal frame | Narrow oval front | Dimensions & fit: Lens width: 52 mm, 54 mm | Bridge: 20 mm | Temple length: 140 mm | Lens height: 41 mm, 42 mm | Available sizes: 52 mm and 54 mm | Recommended face shapes: Oval | Round | Heart | Square | Composition & care: Frame: Metal | Lenses: Crystal (glass)