Double wall paper hot coffee cups bulk

The double-wall paper cup represents a revolutionary advancement in disposable drinkware, primarily distinguished by its innovative thermal insulation system. The secret lies in the engineered air gap between its two paper walls, which creates an effective heat barrier that keeps beverages hot for extended periods while maintaining a comfortably cool exterior—eliminating the need for separate sleeves and reducing material waste. This smart construction also delivers exceptional structural strength, making the cup noticeably more rigid and leak-resistant than conventional alternatives.