Ray-Ban Square Reverse Sunglasses update a classic square frame with reverse (concave) lenses for a distinctive, modern look and reliable sun protection. Key attributes: Yellow | Gold | Metal | 100% UV protection | Lightweight bio-polyamide lenses | Adjustable nose pads | Full-rim frame | Square frame | Deep square front | Concave reverse lenses | Dimensions & fit: Size 54-19-140 (lens width 54 mm, bridge 19 mm, temple 140 mm) | Size 56-19-140 (lens width 56 mm, bridge 19 mm, temple 140 mm) | Composition & care: Metal frame | Bio polyamide lenses