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. Non-Slip Bottom. Keeps Drinks Cold Up To 24 Hours And Hot Up To 12 Hours. Condensation Free. Meets FDA Requirements. BPA Free. Dishwasher Safe. Swig LifeTM Is A Certified SWaM Owned Business.