Carry your favourite drink or beverage with our Silicone Glass Flask. The flask is made from borosilicate glass and non-slip silicone and has a bamboo lid. It is leak-proof. It is made using BPA free plastic. Care and Use: Wash before first use in warm soapy water. It is dishwasher safe for glass. Hand wash only for the bamboo lid. Do not use harsh detergents, cleaners or scourers. Dry thoroughly after washing. If the glass becomes chipped, cracked or broken, please discontinue use. Capacity: 600ml.