AES Absolute Eyewear Solution Browning Safari Glasses TR90 Black/Gray Browning Safari Black Frame Grey Lens The Safari Sunglass Series By Browning Eyewear Made Of a Military Grade Polymer Called TR-90 Allows Durability And Comfort. Outdoor Enthusiast Can definitely Appreciate These Browning Eyewear Sunglasses Which Are Stylish, highly Durable And Impact resistantCR-39 makes Excellent Polarized lenses And Has a Cost And Weight Advantage Over Glass With Superior Impact Resistance While Still maintaining An extremely Clear Lens. These sunglasses Have a Medium To larger Frame That Would Be Best Suited For Oval, Round Or Heart Shaped Medium To Large Face Features: - Uses a "Military Grade" Polymer Known as TR-90 - Frames Look Great, Very Lightweight And highly Flexible - Cr39 Polarized Lens - Superior Impact Resistance While Still maintaining An extremely Clear Lens - Each Frame Has The highest Of Quality Metal hinges - Medium To larger Frame Best Suited For Oval, Round Or Heart Shaped Medium To Large Face Manufacturer: Absolute Eyewear Solution Model: Brn-SAF-001