The Eco-Products EcoLid Renewable/Compostable Hot Cup Lid, PLA, Fits 10 oz to 20 oz hot cups, are unlike traditional hot cup lids, the Renewable & Compostable EcoLid® is made with PLA, a plant-based material. The EcoLid is specially designed to top off hot beverages and prevent leaking. Crystalized formulation add strength and heat tolerance.