Whether your first sip is in the kitchen, car, or campsite, the 16 oz Coffee with Flex Sip? Lid lets you enjoy your favorite brew leak-free. So go ahead, start your day with confidence and know that your favorite beverage will be by your side. Our unique double wall vacuum insulation protects temperature for hours. Cold drinks stay icy cold and hot drinks stay piping hot so you can stay refreshed for any adventure.