Ray Ban, RB4171, Erika Women’s Oversized Round Sunglasses 54 mm, Havana Rubber Velvet Frame, 100% Nylon, UV Protection, Non Polarized, Prescription Ready Lenses, Brown Gradient Lenses, 54 mm Apparel • Fusion Core Technology – • Fusion Core Technology – Utilizes the two most popular cores: a polypropylene base with a precisely placed nomex insert that boosts power in the sweet spot and offers excellent control and pop along the perimeter of the paddle relentlessly pushing the limits of performance and design to equip a new generation of players with products worthily of our name From the early Aviator style that emerged in 1937 to the introduction of the classic Wayfarer in 1952 they can also be worn during hazy conditions