These OEM Single Sided Poly (SSP) Paper Hot Cups feature a polyethylene lining that creates a reliable moisture barrier to prevent leaking. The smooth rolled rim adds rigidity and ensures a leak-resistant fit with compatible lids. Designed for durability, these cups are perfect for serving hot liquids such as coffee and tea. Use with Solo Liftback, Lock Tab, and Traveler Dome Hot Cup lids, which are sold separately.