Finley's eco-friendly, handmade bio-acetate and Revo's signature NASA-based polarized lens technology make the future look brighter. The rectangle shape is universally flattering and the lightweight frames are comfortable for all day wear. Finley's handmade frames are made of a revolutionary eco-friendly bio-acetate that is completely organic, plant-based, sustainable, and is 100% biodegradable. Additional features include 6 base lens technology for a flatter profile temple to temple and a spring hinge to allow for a flexible temple for a comfortable, secure fit. The high-contrast polarized Serilium+ lenses are lightweight, impact resistant, and are glare-reducing. The Revo Light Management System filters harmful UV, HEV, and blue light. These glasses are also digital device friendly by reducing glare and enhancing clarity of digital screens. Measures 57-16-145. Tortoise Frame with Terra Lens.