Made of stainless steel with copper plated inner. Double wall construction for insulation of hot or cold liquids. Snap-On, spill-resistant thumb-slide lid with removable slider for easy cleaning. Vacuum Insulated. Keeps drinks cold up to 9 hours and hot up to 3 hours. Removable silicone base. Non-Slip Bottom. Condensation Free. Meets FDA requirements. BPA Free. Dishwasher Safe. 6" H