Fit & Design: Medium Fit Premium Hobie® Polarized Hydro 360 Lenses. Dual coated Hydrophobic and Oleophobic on the front and back of each lens TR-90 Frame Co-molded megol rubber on the temple arms and nose bridge for added comfort and wearability Integrated hinges Sport Frame with 8-Base Polycarbonate lenses Rx Friendly Specs: Lens: 60mm Nosebridge: 17mm Temple Arm: 132mm 100% Protection from UVA, B & C Rays Hard case and microfiber included Additional Details: Hobie® Polarized sunglasses are protected for life against manufacturer defects