Our single wall hot/cold cups are a good economy option. They are very popular in NZ markets. They are made of card and lined with PLA, a plant-based plastic, not a petroleum-based plastic. As food contamination is not a problem, the waste container can be sent to a landfill (to eventually breakdown into plant matter) or sent to a commercial composting centre (for conversion into compost). Plant based CPLA matching lids are available.