Stanley The Quencher H2.O FlowState™ Tumbler | 30 ozThis Quencher H2. 0 is generously sized but not oversized with an easy carry, comfort grip handle and a narrow base that will fit most cup holders. Long day of meetings rowing class trip out of town. Our durable 30 oz. tumbler, made with recycled stainless steel, is up to the hydration challenge. The double wall vacuum insulation will keep your water cold for 9 hours and iced for 40 hours. And to cap things off, there's an advanced flow state lid that