The moisture-blocking poly lining protects against leaky seams and soak-through. Save money by reducing the need for sleeves or double cupping. The double-wall construction combined with insulating air channels keeps the heat inside and the cup cool to the touch. Coffee, tea and hot chocolate maintain warmth while on the go! Whether you're in the foodservice industry, managing an office or planning an event, we have a beverage serving solution you can count on. Compatible lids are sold separately. Four cup sizes share one lid.