✅ Vacuum Insulated Coffee Mug: Coffee mug by Sunwill is with double wall vacuum insulation technology, keeping your favorite beverages hot for 3+ hours and cold for 9+ hours. Sweat proof, no condensation, burn free. | ✅ Premium 18/8 Stainless Steel: The insulated coffee mug is made from premium 18/8 kitchen grade stainless steel, never rust, lead free, easy wash and unbreakable. Elegant pearlized finish, long-lasting, no scratching, peeling or fading. | ✅BPA Free Press-in Lid: The eco-friendly lid is completely BPA free; silica gasket seals to achieve maximum spill proof capability. Wide mouth drinking hole on the top, straw friendly, with sliding cover to keep bugs and dust out for drinking at your beautiful garden. The sliding cover is to prevent heat/ cold from escaping. It is not leak proof. | ✅Comfortable Handle: Coffee cup with handle is always the best choice. Full loop designs fit mitts fully, easy grip, making it the great outdoor travel mug and the coffee mug in the office as well, tailored for ice and coffee lovers. No damp or frostbit fingers anymore. Exclusive gift to yourself, family, your team and friends. | ✅Free Lifetime Customer Service: If you have any questions, please contact our customer service and we will reply shortly. We provide 100% satisfaction guarantee if you are not fully happy with the insulated coffee mug.