Description [Product Information]-The water bottle has 4 different sizes. the largest is 1.5 liters. the capacity is enough for children and adults to use. enough to keep you healthy and hydrated to support your outing and travel. Environmental protection and safety-Double-wall vacuum insulation technology. with a stainless steel shell and a sturdy inner container. made of high-quality 304 stainless steel without BPA. phthalates. and toxins. Maximize the temperature of beverages and soups at an appropriate temperature. Keep warm for 12 hours and cool for 24 hour 100% Leak-proof- The thermos bottle has an air-tight seal and is covered with a food-grade sealed silicone ring to prevent any overflow. The two-layer structure will not condense and accumulate water. There is no sweat or freezing on the outside. You can Put the water bottle in the gym bag or backpack without worrying about leakage. Wide uses-This stainless steel bottle can be used at home. work. in the gym. sports. in the car. on the beach. or even camping or hiking. Typical uses include water. tea. coffee. carbonated drinks. wine and beer. Please rest assured to buy -We firmly believe that our brand quality takes advantage of the decision in the market.If you have any problem. pls feel free to contact us .We will do our best to help you solve the problem