100% SEALED AND LEAK PROOF: Autoseal technology automatically seals between sips to prevent leaks and spills; lid-lock prevents the Autoseal 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 3 hours or cold up to 10 hours, on the go, in the office or outdoors DURABLE and SUSTAINABLE: High-quality travel mug, BPA-free plastic lid and vacuum insulated stainless steel body; the sweat proof design makes sure your liquids stay in the mug, not on the outside EASY TO CLEAN: Dishwasher-safe lid hinges open completely for easy cleaning (one piece, no separate parts to take apart or misplace); hand wash vacuum flask body IDEAL FIT: The sustainable and environmentally friendly stainless steel thermal mug fits into all common car cupholders; size 9 x 8 x 16.5 cm; capacity 300 ml; weight 266 g