This vacuum insulated water bottle is made of food-grade 18/8 stainless steel liner and is BPA-free. It has excellent anti-oxidation and corrosion resistance performance, which can effectively prevent the bottle from oxidation and peculiar smell, ensuring no metallic taste or rust in drinking water. The product adopts a double-layer vacuum insulation structure, which can keep beverages hot or cold for up to 12 hours. It also has excellent leak-proof performance, and there will be no condensation on the bottle body. The water bottle is equipped with a new screw top design, which is sealed and leak-proof. It can be directly put into a backpack for carrying without worrying about leakage. The wide mouth design makes it easy to pour water for drinking, which can replace disposable plastic water cups, being environmentally friendly and practical. With its beautiful appearance and strong practicality, it is an ideal gift for relatives and friends on occasions such as birthdays, Christmas, and anniversaries. We provide satisfactory after-sales service. If you are not satisfied with our products or have any quality problems, please feel free to contact us for corresponding solutions. Color: Black.