Contigo Luxe Autoseal Travel Mug, Stainless Steel Thermal Mug, Vacuum Flask, Leakproof Tumbler, dishwasher safe, Coffee Mug with BPA Free Easy-Clean Lid100 % SEALED AND LEAK PROOF: Auto seal technology automatically seals between sips to prevent leaks and spills; lid lock prevents the Auto seal button from accidentally being pushed while on the go ICE COLD OR PIPING HOT: Thermalock double wall vacuum insulation keeps temperatures locked in for hours; drinks stay hot up to 5 hours or cold up to 12 hours, on the go, in the office or outdoors DURABLE and SUSTAINABLE: High quality travel mug, BPA free