Fit & Design: Premium Hobie(R) Polarized Hydro 360 Lenses Hydrophobic and Oleophobic coatings protect your lenses from salt water, dust and the elements Stainless steel frame with precision flex hinges for stability Adjustable silicone nose pads Aviator lifestyle frame with 6-Base Polycarbonate lenses Rx Friendly Medium/Large Fit Lens: 54mm Nosebridge: 13mm Temple Arm: 137mm 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