Lorenzo has a double bar across the brow, angled corners, and a rim stepped rather than rolled. The aviator which has been right for decades, drawn tighter. Product Details Frame: Surgical grade stainless steel Lenses: CR-39 UV-400 protection blocks 100% of harmful UVA and UVB rays. Non-polarized Hardware: Adjustable nose pads, acetate temple tips Bridge: Double bar Size & Fitting Size: 57-18 Temple length: 145mm Face Coverage: Large. A wide lens front for those who prefer generous coverage across the face. Bridges: Universal Fit, with adjustable nose pads for a customized fit.