Kuboraum Mask Z51 SI Sunglasses combine a modern squared silhouette with a foldable gear hinge for compact storage. The silver metal frame and double lens rim house brown lenses with 100% UV protection. Key attributes: Gray | Silver | Metal, acetate | 100% UV protection | Foldable gear hinge | Custom nose pads | Acetate temple tips | Metal temples | Squared shape | Double lens rim | Hand-finish look | Brown lenses | Dimensions & fit: Eye 49mm | Bridge 21mm | Temple 140mm | Composition & care: Metal | Acetate