I am eco smooth double wall hot cups feature a cardboard outer wall, to provide protection against heat. The outer wall has a smooth, glossy finish. I am eco hot cups are made with a bio-film lining, and are 100% compostable and biodegradable for a great environmental choice. Detpak has a range dedicated to ensuring minimal environmental impact, I am eco. From sourcing materials and manufacturing to distribution and end-of-life disposal, every stage of the products life has been developed to minimise environmental impact Smooth, matte walls for eco look Bio-film lining offers a fully biodegradable and compostable alternative to standard hot cups Double wall keeps hands cool.