STANLEY Quencher H2.O FlowState™ Tumbler, 887 ml, White (Frost)ADVANCED LID CONSTRUCTION Whether you prefer small sips or maximum thirst quenching, Stanley has developed an advanced FlowState lid that features a three position rotating cover: a straw opening that resists splashing water, with a seal that holds the reusable straw in place, a drink opening, and a continuous top for added leak resistance. We've also included an ergonomic, comfortable handle so you can easily carry your ice cold water to work,