David is a round-square in acetate, its bridge and temple hinges finished in engraved metal, a detail that traces back to the resortwear sunglasses of 1970s Capri and Positano. Product Details Frame: Acetate with engraved metal bridge and temple hinges Lenses: CR-39 UV-400 protection blocks 100% of harmful UVA and UVB rays Hardware: Engraved metal bridge and hinge detailing Size & Fitting Size: 51-21-145 Medium Temple length: 145mm Face Coverage: Moderate Bridge: Standard Fit