No Spills, No Stress. Meet your new favorite 40 oz 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: 40oz Completely leakproof Stainless Steel Circular flip straw with hygienic flip tab Cupholder compatible Ergonomic handle Triple wall insulated to keep your beverages ice cold Ambidextrous lid for right and left handed sipping Rubber base to protect your surfaces BPA Free Durable to last for years to come Dishwasher safe Do not freeze or microwave