Smith Arena Elite Sunglasses Tan 499 Frame ChromaPop Black Lens. These glasses have FreeFloat lens technology which isolates frame-induced stress from reaching the lens. As for the optics our ChromaPop lenses boost color and detail. They're also tapered to correct distortion a must on the range or in the field. Specifications for Smith Arena Elite Sunglasses: Manufacturer: Smith Application: Outdoor Temple Length: 120 mm Age Group: Adults Gender: Unisex Lens Color: Black Polarized: No Photochromic: No OTG: No Temple Design: Bayonet Frame Type: Pivlock System Frame Material: Nylon Lens Shape: Irregular Lens Material: ChromaPop Horizontal Frame Measurement: 135 mm Vertical Frame Measurement: 46 mm Features of Smith Arena Elite Sunglasses Frameless FreeFloat lens for a comfortable fit and increased impact resistance ChromaPop lenses enhance contrast and natural color to make the details pop Meets ANSI Z87.1 and MIL-PRF-31013 clause 3.5.1.1 100percent UVA/B/C protection Medium-large fit large coverage 7x4 toric lens curvature Adjustable nose piece for a perfect fit PivLock interchangeable lens system makes lens changes easy Package Contents: Smith Arena Elite Sunglasses Smith 203384YZ4991C: Arena Elite Sunglasses Tan 499 Frame ChromaPop Black Lens