Why do you need KollyKolla water bottle? Replenish body’s moisture and stay active Hydration is key to maintain a healthy lifestyle. Whether you’re at home, outside, school,office , gym,or headed to the camping,running,Fitness,etc. In summer,you can hold cold water with our water bottle to keep your body cool;in winter,you can hold hot water to warm your body. Vacuum+ Copper Coated Insulation Technology This drink bottle as well as the twist on lid have a double wall exterior with a vacuum between the walls. This means your drink in the bottle has no medium for the heat or cold to transfer through. The exterior of the inner wall, in the vacuum sealed area, has been dipped in copper to add insulation. Copper reduces the transfer of temperature, adding even more insulation to your bottle. Leak-proof & Spill-proof & Sweat-proof The silicone ring in the lid makes no leakage.Cola bottle Narrow mouth design,no worry about water spilling out when drinking in the car/train/boat/bus/plane.Your drink will truly stay as hot or cold as long as possible.Even filled with ice or boilingwater, the bottle will never sweat or get hot when touching it! Food Grade 18/8 Stainless Steel bottle body KollyKolla water bottles are made of high quality food grade 18/8 stainless steel and are BPA free. Shatter Resistant and durable.They are reusable, it is friendly to your wallet and the environment. Why should you choose KollyKolla? We have a high-quality supply chain with long-term stable cooperation. No matter the material selection and produce process are in high standards, which guarantee the quality of bottles from the source. Choosing us is to choose peace of mind. What you get: 1.KollyKolla Water bottle with 2 Lids 2.Straw*2 3.Color box