Eliminates Need For Sleeves And Double Cupping Duo Shield® insulated PAPER HOT CUPS / LIDS provide air pocket insulation to keep beverages hot and hands at a comfortable temperature. This dual layer product, made with 95% plant-based renewable resources with a poly lining that acts as a moisture barrier to keep liquid inside the cup, eliminates the need to add a sleeve or double cup hot beverages. The ideal solution for specialty coffee, lodging, travel and leisure operations. Sustainable Features: Made with 95% plant-based renewable resources Solo represents that our Solo brand paper products are made from paper purchased from manufacturers that at a minimum have either Forest Stewardship Council (FSC) or Sustainable Forestry Initiative (SFI) certified fiber sourcing.