The RB4454 Flacko Bio-Based sunglasses bring the past into today's spotlight with an archival-inspired acetate design. Boldly structured with angular edges and a defined rectangle shape, the frames feature an ultra-defined brow line and thick profiles for a statement-making finish. Crafted in nylon and propionate, the iconic Metal Hawkeye temple elevates the look with unmistakable edge. Finished with green lenses in a classic base, these sunglasses are a fresh, genderless take on vintage style.