Fit & Design: TRFE Lightweight floating frame is buoyant for quick response when they fall off your head and into the water! Premium Hobie® Polarized Hydro 360 Lenses. Dual coated Hydrophobic and Oleophobic on the front and back of each lens Integrated hinges Mirror polarized Lifestyle Frame with 6-Base Polycarbonate lenses Rx Friendly Medium/Large Fit Lens: 54mm Nosebridge: 18mm Temple Arm: 138mm 100% Protection from UVA, B & C Rays Additional Details Hard case and microfiber included Hobie® Polarized sunglasses are protected for life against manufacturer defects. California Proposition 65