No Spills, No Stress. Meet your new favorite 40oz Tumbler. The HydroJug Traveler is completely leakproof, 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. Key Features: * Circular Flip Straw * Soft Touch Ambidextrous Lid * Triple Wall Insulation * Rubber Base * Compatible With Most Cup-Holders * Leak Proof * 40oz Protected by U.S. and foreign trademarks and patents. Patent Pending