Contigo AUTOSEAL West Loop Stainless Steel Travel Mug with Open Access Lid Never spill another drop! Designed to be 100-percent leak-proof, Contigos innovative AUTOSEAL technology lets you take beverages on-the-go without the risk of a messy spill. This vacuum-insulated travel mugs AUTOSEAL lid makes the mug leak-proof and spill-proof, yet is also easy to use. With a countered body and rubbery grip, the travel mug provides convenient one-handed drinking for both left- and right-handed users and fits most car cup-holders. It also features a dishwasher-safe lid that hinges open for easy cleaning. Contigo Lifetime Guarantee We are proud of the quality materials and reliable workmanship that goes into each Contigo product. We go to great lengths to create a truly superior product, but we also know that on occasion, things happen. As such, we back our products with the Contigo Lifetime Guarantee against any manufacturing defects in materials and workmanship.AUTOSEAL...America's #1 selling* line of Travel Mugs *Based on total branded travel mug sales, excluding private label. Source: Nielsen ScanTrack Drinkware Container and Set report for U.S. Food, Drug, Mass and Information Resources (IRI) Costco CRX report for the 52 weeks ending 8/3/13. AUTOSEAL Technology Automatically seals between sips! The 100-percent leak-proof and spill-proof AUTOSEAL lid automatically seals between sips, making it impossible to spill. There is no lid to remove or spout to open, so it is great for one-handed, on-the-go drinking whether commuting, hiking, or just dealing with a busy day. Simply press the button to drink and then release to seal between sips. And because the lid system is always closed unless activated, your beverages will remain hotter or colder for longer periods of time. Vacuum-insulation for maximum temperature retention Made from durable stainless steel, the mugs vacuum-insulated double-wall body ensures that hot beverages stay hot and cool beverages stay cool. The 16-ounce size keeps beverages hot for up to 4 hours and cold for up to 12 hours, while the 20-ounce size keeps beverages hot for up to 6 hours and cold for up to 18 hours. This double-wall construction not only retains temperature, but also prevents external condensation from forming so table tops remain free from moisture. Dishwasher-safe lid hinges open for easy cleaning This Contigo travel mug also features an easy-to-clean lid. The lid is top-rack dishwasher safe, and its interior ice gaurd hinges open for increased visibility and water flow while cleaning. Caring for Your Contigo For easy care, the Contigo lid is top-rack dishwasher safe. It is recommended to hand wash the mug body to protect the finish. Always rinse the mug immediately after each use, and always store the mug with its lid removed to prevent moisture from becoming trapped in the body or lid after washing. Do not keep liquids that spoil easily, such as dairy, in the mug for prolonged periods. At a Glance About Contigo Knowing that on-the-go beverages can be messy and complicated to use, Contigo developed a line of simple yet functionally innovative drinkware to help people face life's daily challenges. The products are stylish yet resilient, and sleek yet strong the perfect combination of performance and grace. Contigo products give you the confidence you need to face the day, and pride in knowing that you bought the best of the best. Contigo is passionate about the products they create and believes you will be pleasantly surprised by the array of helpful innovations it offers. Eco-sensitive By using this Contigo product, you will both help the environment and also save money by taking your coffee, tea, water or juice with you in a reusable container instead of buying disposable cups or water bottles as you go. Research shows that coffee drinkers can save nearly 23 pounds of paper cup waste by toting around a reusable mug.