Free Shipping & Easy Returns, plus Price Match! Explore ECO Flint Eyeglasses now and enjoy the latest promotions on ECO frames. The Flint eyeglasses from ECO boast a timeless rectangular silhouette. These durable, lightweight glasses are made from plastic that’s safe for the environment, a material that won't leach chemicals into your eyes or water supply when you wear it. The plastic frames come in an array of colors, so you can opt for something understated or dramatic depending on your preference and wardrobe. For comfortable, attractive eyeglasses with clean lines, choose the Flint from ECO. Additional Information: ECO Cameroon Story (PDF)