Introducing the ultimate party drinkware - the 18oz PARTY CUP! With its double-walled, vacuum-sealed design, this cup keeps drinks cold for 12+ hours and hot for 3+ hours. Its non-breakable construction, built-in silicone coaster base, and compatibility with standard cup holders make it perfect for any occasion. Don't forget to add our X-Large EZ Slider Lid for easy sipping. Straws and Straw Toppers sold separately.