Julep™ Travel Mug 15oz (450ml) Double Walled Stainless Travel Mug with Polymer Hull and black lid with flip tab. Whether it's for a birthday, Valentine's Day, a wedding anniversary, or simply just because, people love custom travel mugs. Create custom designs for your customers, or allow them to add their own unique artwork and feel more involved in the process. These mugs are not Dishwasher Safe, for the maximum life of the imaged product, we recommend hand washing. This mug meets or exceeds FDA requirements for food and beverage safety.