Fit & Design: Premium Hobie(R) Polarized HydroClean(TM) Lenses Hydrophobic and Oleophobic coatings protect your lenses from salt water, dust and the elements Classic square lifestyle fashion frame with 6-Base Polycarbonate lenses Rx Friendly Medium Fit Lens: 56mm Nosebridge: 17mm Temple Arm: 145mm 100% Protection from UVA, B & C Rays Additional Details: Hard case and microfiber cloth included Hobie(R) Polarized sunglasses are protected for life against manufacturer defects