480ml Eidy Glass Drink Bottle is made of single-walled borosilicate glass which is suitable for both cold and hot. Transparent and pure, with comfortable touch. Free of plumbum and BPA, which is ecofriendly and a healthy drinking water style. Split proof tight sealed bamboo lid with metal straw included. Soft cork material protective sleeve is isolated heat and anti-skid with comfortable touch and protects the glass bottle body.