Hit your daily hydration goals with style and ease using Stanley's fan-favorite 30 ounce Quencher Travel Tumbler. Made from stainless steel with double-wall vacuum insulation, this tumble helps keep liquids cold for hours on end. The tumbler will keep ice for up to two days and keep you drinks cold for up to nine hours. The lid is designed with a rotating cover that features an opening for a straw, an opening for sipping and a full-cover top that prevents splashes.