Our clear flat lids are a secure fit for Ecoware cold clear cups. These lids are leak-proof, sturdy and made of 100% renewable resources, low-emission Ingeo™ bioplastic made from plants and certified industrially compostable. Ecoware clear flat lids are suitable for clear cups ranging between 300ml to 700ml. Our 96mm clear flat lid has an optional straw hole that you can pair with our bioplastic or paper straws. The 76mm clear flat lid has no straw hole.