This double-duty, on-the-go drink handler was designed for people on the go. The leakproof lid locks in every drop, while the double-wall vacuum insulation locks in the temps all day. This lid easily rotates to fasten for both right- and left-handed users, adding a strong layer between your free-flowing drink and the outside world. And if we're talkin' about where to take it, its elevated handle lets you enjoy cupholder convenience just about anywhere. Please note: Do not use the Rambler Travel Mug with hot, carbonated, or pulp beverages or for storage of food or perishables.