Constructed of recycled stainless steel for sustainable sipping, our 40 Oz. Quencher H2.0 offers maximum hydration with fewer refills. Thanks to Stanley's vacuum insulation, your water will stay ice-cold, hour after hour. The advanced FlowState lid features a rotating cover with three positions: a straw opening designed to resist splashes while holding the reusable straw in place, a drink opening, and a full-cover top.