Keep a cool head all day long with the contigo autoseal vacuum-insulated stainless steel water bottle, 720 ml. Whether you're on the go or playing sports, your water will stay cold for up to 28 hours thanks to the thermalock vacuum insulation. Simply press the autoseal button to drink and release to close it. Thanks to autoseal technology, this reusable, bpa-free water bottle is 100% leak-proof. When you are finished drinking, fold down the integrated spout cover to protect the mouthpiece from dirt and germs. A convenient carrying handle is also integrated into the lid for easy transport. At the end of the day, simply place the lid in the dishwasher, the cup itself can be easily washed by hand.