Milton's double walled vacuum insulated stainless steel flask keeps beverages hot and cold for hours. The flask is coated with copper to heat retention. This bottle is made from high-quality aisi 304, 18/8 stainless steel, food-grade and bpa-free stainless steel material that makes the bottles safe for use on a regular basis. The taste and nutritive value of the drinks remains intact for hours making the bottle very appropriate choice for storing beverages. 100% food grade. The mouth makes it easy to drink without spilling. This double walled vacuum insulated stainless steel bottle is easy to carry, they are highly durable and can withstand daily use with ease. You can use these bottles to store water and other beverages without the fear of breaking them