These disposable coffee cups are made from heavy-duty FSC® certified paper and a plant-made Ingeo™ bioplastic lining. Jadcup hot cups are leak-proof, sturdy and premium quality, certified for commercial composting. Double Wall Jadcup's offer even more insulation than our Single Wall EcoCups with an extra layer of paperboard, making it ideal for hot teas and miso soup. Cup sizes measured to brim capacity.