Vacuum Insulated Technology: Sunwill coffee mugs are with double walled vacuum insulation technology, keeping your favorite beverages hot for 6+ hours and cold for 12+ hours. Sweat proof, no condensation.
Premium 18/8 Stainless Steel: The insulated coffee tumbler is with premium 18/8 kitchen grade stainless steel inside, never rust, lead free, easy wash and unbreakable.
BPA Free Press-in Lid: The eco-friendly lid is completely BPA free; silicon 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. Please note the sliding cover is to prevent heat/ cold from escaping. It is not leak proof.
Light Weight and Cupholders Fit: Fits most cup holders. Slim and easy to carry. Perfect gift to yourself, your family 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.