It is made of stainless steel. seal cap keeps your drink cold for up to 24 hours or hot up to 12 hours. Enjoy all kinds of cool and fresh in summer, enjoy the warmth in cold winter. Suitable for cold water, Iced Coffee,hot drinks, hot coffee,etc. Perfect for office workers,students,sports,outdoor enthusiasts, breast-feeding mothers, etc. Company logo and name can be imprinted
