Thermos Ts1802gt Stainless Steel Vacuum Insulated Travel Mug With Dual Function Lid/straw,1200mlis designed to keeps drinks cold all day with Thermos vacuum insulation technology. Its dual-function slide-lock lid lets you sip or use the straw, while the Lumiview clear lid shows contents and a secure straw gasket helps prevent leaks. Designed with a Griptec non-slip handle and base for comfortable, steady use, it fits most standard cup holders. The ultra-clear reusable lid and straw are easy to clean and top-rack dishwasher safe, making it perfect for everyday convenience.