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 | Non-Slip Bottom | Condensation Free | Swig LifeTM Is A Certified SWaM Owned Business | Meets FDA Requirements | BPA Free | Dishwasher Safe