Our single wall hot 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).
Note: The insulation sleeve used for 12oz cups is available to improve insulation properties, however it is not a snug fit and a small air gap will occur (the 12oz sleeve is designed for a 12oz cup and is slightly too big for the 8oz cup).
Brim capacity is 290ml/9floz (US) Safe fill level is 240ml/8floz (US)