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 Polarized Sienna Copper Lens. Wire-Flex Temples For Extra Comfort. Includes Quality Case. 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 Augusto Size Information: Base Curve: 8  Temple Length: 130mm Lens Size: 63 x 44 x 65.3mm, DBL 16.5mm OFFICIAL FACTORY AUTHORIZED SERENGETI DEALER  Product Type: Sunglasses Brand: Serengeti Title: Augusto Polarized Condition: New ID: 7116 Description: Metal Frame, Glass Lenses Feature: Polarized Functions: Photochromic Price: 138.00 Price Type: Fixed Expiration Date: Does Not Expire Department: Optical Payment Accepted: Visa, MasterCard Shipping: US: Priority Mail: Free, US: Express Mail: 22.50 Tax Region: California