Material: Double Wall Thermal Insulated Made of High Quality 304 Stainless Steel Double layer stainless steel construction, durable and prevents bacteria from increasing, also keeps drinks odor-free.Appearance: Easy to carry thermos coffee mug with non-slip and environmentally friendly cleaning materials. You also don't have to worry about scratching the exterior and it is easy to clean.Insulation: Designed to make sure your hot and cold drinks stay at the perfect temperature for 6-8 hours. Stainless steel body with double vacuum insulation ensures temperature retention.Function: When you are driving, in the office or at home, if the reusable coffee cup falls on the ground, it will not spill or leak. The lid will remain tight.Warranty: If you have any questions about the products, you can contact us at any time. We will help you solve the problem on time. We wish you a pleasant shopping experience.