With the vacuum-insulated stainless steel Autoseal Chill water bottle, your drinks stay cool all day long. Whether you're on the go in the city or on the treadmill, thanks to the Thermalock vacuum insulation, your water stays cold for up to 28 hours. Press the Autoseal button to drink, and release it after each sip to seal the bottle. With Autoseal technology, this reusable, BPA-free water bottle is leak-proof and drip-free. When you're done drinking, fold down the protective cover to keep the spout clean from dirt and germs. The lid also features a convenient built-in carry handle for easy transport. The lid is dishwasher safe, while the body should only be hand washed.