Serengeti Spectral Control, "Smart Lens" Technology. Engineered to Improve Contrast & Reduce Eye Fatigue. Precision Ground & Polished Optical Glass Photochromic Lenses Lighten & Darken To Changing Light Conditions For Comfort & Clarity. Premium UVA & UVB Protection. Drivers Sienna Copper Lens.   Includes Quality Case & Microfibre Lens Cloth.  1 Year Factory Warranty. Fast FREE SHIPPING(USA) Via Priority Mail, Arrives in 3 To 5 Days. Orders For In-Stock Items Ship Within 24 Hours. No Sales Tax (except California). Sunglasses Are Not Returnable Savona Size Information: Base Curve: 6   Temple Length: 128mm Lens Size: 57.8 x 42 x 60.9mm, DBL 14.8mm OFFICIAL FACTORY AUTHORIZED SERENGETI DEALER Product Type: Sunglasses Brand: Serengeti Title: Savona Condition: New ID: 7182 Description: Plastic Frame, Glass Lenses Feature: UV Protection Functions: Photochromic Price: 128.00 Price Type: Fixed Expiration Date: Does Not Expire Department: Optical Payment Accepted: Visa, MasterCard Shipping: US: Priority Mail: Free Tax Region: California