Native Eyewear Flatirons Polarized Sunglasses,Matte Black Frame, Gray Lens Castor Resin Imported Acetate frame plastic lens polarized Lens width: 47 millimeters Lens height: 41 millimeters Bridge: 11 millimeters Arm: 137 millimeters 3" high 3" wide N3 polarized lenses filter blue light, minimizing haze so you get greater clarity, color and contrast Co-injected Rhyno-Tuff Air frames seemlessly incorporate our grippy, comfortable molding right into the plastic to help keep your shades in place Mastoid temple grips rest comfortably behind your ears on the mastoid bone Optimal fit for medium to large profiles Cushinol nose pads ensure a soft feel and custom fit, regardless of nose shape or size You can return this item for any reason and get a full refund: no shipping charges. The item must be returned in new and unused condition. Go to Your Orders to start the return Print the return shipping label Ship it!