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 F-D-A Requirements, BPA Free, Dishwasher Safe