● The flask is made of 304 stainless steel. It will never leave a metal taste or rust. ● All parts contact water are food grade and BPA free. ● 100 percent leak proof.
● HEALTH IN MIND - BPA free material/ totally non-toxic/ personal use/ protect your healthy drinking. ● VACUUM INSULATION - keep your icy beverages for 24 hours/ keep your hot drinks for 12 hours.