The WYLD Cup™ is designed to look just like the iconic plastic cups that have fueled parties for a generation, but we've given it a reusable, eco-friendly, high-performance upgrade. The Official Party Cup™ is made with insulated stainless steel that will keep your drink ice-cold (or hot) for hours. Pour in the beverage of your choice and pop the lid on top. The Wyld Slyder™ lid is spill-proof, s