Solo® single sided poly hot cups are great for serving hot beverages like coffee, tea or cocoa. The cups are lined with polyethylene which acts as a moisture barrier to keep liquid inside the cup and prevent leaking. Solo® single sided poly hot cups feature a smooth rolled rim that gives rigidity to the cup and ensures a leak-resistant lid fit. Made with 90% plant-based renewable resources. 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