The Stanley Quencher H2.0 is perfectly sized with a comfortable handle and a base that fits most cup holders. This durable 30 oz tumbler, made with recycled stainless steel, will keep your water cold for 9 hours and iced for 40 hours thanks to its double-wall vacuum insulation. It also features an advanced FlowState™ lid with a rotating cover that has three positions: a straw opening with a splash-resistant seal, a drink opening, and a full-cover top.