The Ello Cole vacuum insulated stainless steel travel mug is designed to give you the perfect pick-me-up while on the go. Its new patented slider lid is 100% leak-proof and easy to use. Vacuum insulation keeps beverages hot for up to 5 hours and cold for up to 10. The cork composite base protects tabletops and fits in most car cup holders. 100% BPA/BPS free and lid dishwasher safe. It is recommened that tumbler is hand washed. Do not freeze or microwave this product. Ello is dedicated to creating stylish drink ware that provide our customers with the perfect pick-me-up to brighten up their day.