Double wall designed to protect hands by eliminating the need for a cup sleeve while retaining heat. Paper with bio-lining made from plants creates a moisture barrier. Suitable for liquids up to 220°F and freezer safe. Great for warm beverages like coffee, tea, and hot cocoa. 100% compostable in two to four months in a commercial composting facility. Not microwavable. Cup Type: Hot Cup; Interior Volume Capacity: 8 oz; Material(s): Paper; Material Type: Paper.