Press fit lid, lovely to drink from lid on or off. Double wall stainless steel. Vacuum sealed thermal insulation. Drafted vessel for easy pour. Designed for lasting drinking pleasure on the go. - Designed to be taken apart for thorough cleaning. - Handwash recommended to preserve surface finish due to harsh chemicals often used in dishwashers. - 18/8 food grade stainless steel. - Electropolished, so you can enjoy the taste of your coffee. - BPA/BPS free. - One-year warranty on defects and faults