Meet your new favorite 40oz Tumbler. The HydroJug Traveler is completely leakproof with the straw down, cupholder compatible, and has a hygienic circular flip straw for easy sipping. Go anywhere and do anything with this durable, insulated and sleek hydration companion. The details- Circular Flip Straw Soft Touch Ambidextrous Lid Triple Wall Insulation Rubber Base Compatible With Most Cup-Holders Leak Proof 40oz