Custom logo printed /engraved double wall vacuum insulated Coffee mug made of high quality stainless-steel and then hand wrapped in bamboo creating a uniquely insulated design. This ensures that your drinks stays hotter or colder longer.Modern technology allows us to create beverage holders with almost unbelievable thermal retention capabilities.Solidly Constructed from High Grade 18/8 gauge Stainless Steel makes this mug almost Indestructible.