[Vacuum Insulated Technology] - ZSS Saveit coffee mugs are with double walled vacuum insulation technology, keeping your favorite beverages hot or cold for hours. [Material] - The insulated coffee mug is made from premium 304 food Grade stainless steel, never rust, lead free, easy wash and unbreakable. Each cup is powder coated for a durable finish, sweat proof, no scratching, peeling or fading. [BPA Free 2-in-1 Lid] - The world's first 100% leak-proof BPA-free locking lid, so you can take your beverage wherever you go without worry of condensation. And you can enjoy your coffee either through our exclusive flip straw or the sipping hole. Non-slip silicone pad design at the bottom, which allows the coffee cup to sit stably and safely, so do not tip over easily. [Versatile] - Your go-to for camping, travel, gym, office, car, work from home, and chill at home thermal, coffee mug, goes anywhere and everywhere. Perfect gift to yourself, your family and friends. [100% Satisfaction] - We know you deserve the best and that's why our products and service is second to none. If you are not satisfied with your purchased product, please feel free to contact us and we will solve all problems for you.