YOUR DREAM TUMBLER: Whichever way your day flows, the H2.0 FlowState tumbler keeps you refreshed with fewer refills. Double wall vacuum insulation means drinks stay cold, iced or hot for hours. Choose between our 14oz, 20oz, 30oz,40oz and 64oz options depending on your hydration needs. The narrow base on all sizes (except 64oz) fits just about any car cup holder, keeping it right by your side.