· NO LEAKS OR SPILLS: AUTOSEAL lid locks between sips and is 100% leak- and spill-proof· TEMPERATURE CONTROL: Drinks stay hot up to 11 hours or cold up to 24 hours with THERMALOCK vacuum insulation· CLEANS UP NICELY: Easy-Clean Lid is top-rack dishwasher safe, while body can be washed by hand· DRINK WITH EASE: Bottle can be held, locked, and released with one hand· FITS YOUR LIFE: Built to fit in most car cupholders and under most single-serve brewers