The Guardian Vacuum Insulated Tumbler is your next beverage companion. With Thermos vacuum insulation technology, it keeps your drinks hot for up to 5 hours or cold for up to 14 hours. • The durable stainless steel interior and exterior ensure long-lasting performance. • Whether you are sipping a steamy brew or an icy refreshment, the exterior stays cool to the touch and remains sweat-proof. • The slide lock lid makes sipping a breeze, just slide to open and close. • Cleaning is easy with the leak-resistant plunger lid system that easily disassembles. • 530ml Product Capacity