FrostBuddy to go cup insulator in “Nebula” - a shimmering purple. Secure flip-top lid that can be used with or without a straw, as well as silicone lid for use with to go cups. Fits all sized to go coffee or soda cups. The World’s 1st Universal Cup Insulator! Goodbye watered down coffee or crappy neoprene sleeves. The To-Go Buddy fits every size hot & cold cup you need and keeps your ice for up to 24 hours. Want to use it as a normal tumbler? That’s fine, just pour it in! Material: Double Walled Stainless Steel w/ Copper Lining