Description Product Details Warranty Information LOUISLUSO L1023 Black: The lightest, most durable frames in the world! (see the video!) Lenses: Aspheric Polycarbonate (Thinner and lighter without the coke bottle, magnifying effect) with Scratch Resistant Coating and UV400 filter. Frame Material: ULTEM with nose pads Fit: Medium 50 21 140 40 Comes with: Companion Case, Cleaning Cloth, 1oz. Eyeglass Cleaner Free Shipping (USA) Frame Size: Medium (49-52mm) Bridge Width: 21mm Temple Length: 140mm Color: Black Shape: Round Material: Ultem w/Nosepads Style: Full-Rim Spring Hinge: No, but Flexible Special Features: Ultra-light newOptions: true 30-Day No-Hassle Guarantee