Longchamp LO177S Sunglasses pair a metal-and-plastic butterfly frame with gradient brown CR39 lenses for reliable daytime sun protection and a polished look. Key attributes: Brown | Marrone | Metal and plastic | UV protection (Category 3) | CR39 lens material | Gradient lenses | Butterfly frame | Metal front with plastic rims | Dimensions & fit: Lens width: 58 mm | Bridge: 20 mm | Lens height: 55 mm | Temple length: 140 mm | Composition & care: Metal | Plastic | CR39 lenses