Castor Seed sunnies are 100% plant based, eco-friendly sunglasses made from Castor Seed Oil. This process begins when Castor Beans are harvested and dried so that the bean splits. They are then pressed to extract castor seed oil, which serves as a replacement for plastics with a focus on sustainable and attractive products and systems. Castor Seed Plants also require very little water and pesticides to grow and are natural and renewable which makes them the perfect choice for a sustainable material that also looks and feels amazing.