Fit & Design: TRFE Lightweight floating frame is buoyant for quick response when they fall off your head and into the water! Premium Hobie(R) 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(R) Polarized sunglasses are protected for life against manufacturer defects. California Proposition 65