The ECO (Environmental Conscious Optics) Collection is hand layered from a cotton-based acetate and the finest woods available. Every pair in the ECO Collection comes standard with a clear lens that your optometrist can easily switch out with your prescription lens. The ECO Collection is 100 percent renewable, biodegradable and hypoallergenic. Each frame goes through a 15-step handmade process to create this one of a kind piece. The ECO Collection solidifies Proof as the leader in sustainable eyewear.