Showcase your commitment to green with our classic GreenStripe cold cup accessories. Made from PLA, a plant-based plastic, these cups are renewable and certified compostable. They're made from crops that grow back every year, and they can be composted (where facilities exist) and returned to the soil to help new plants grow. Food Container Type: Insert; Material(s): PLA; Material Type: Plastic; Interior Volume Capacity: 3 oz.